【精品】同济大学2006—2007学年第二学期牙合学期末考试试题A
理论力学期末考试试卷(含答案)
同济大学课程考核试卷(A 卷) 2006—2007学年第一学期命题教师签名:审核教师签名: 课号:课名:工程力学考试考查:此卷选为:期中考试()、期终考试()、重考()试卷 年级专业学号姓名得分=10m/s 2,成60度mm 计)2_;计的刚当无初B 的12C5均质细杆AB 重P ,长L ,置于水平位置,若在绳BC 突然剪断瞬时有角加速度?,则杆上各点惯性力的合力的大小为_gPL 2α,(铅直向上)_,作用点的位置在离A 端_32L_处,并在图中画出该惯性力。
6铅垂悬挂的质量--弹簧系统,其质量为m ,弹簧刚度系数为k ,若坐标原点分别取在弹簧静伸长处和未伸长处,则质点的运动微分方程可分别写成_0=+kx x m _和_mg kx x m =+ _。
二、计算题(10分)图示系统中,曲柄OA 以匀角速度?绕O 轴转动,通过滑块A 带动半圆形滑道BC 作铅垂平动。
已知:OA?=?r?=?10?cm ,??=?1?rad/s ,R?=?20?cm 。
试求??=?60°时杆BC 的加速度。
解:动点:滑块A ,动系:滑道BC ,牵连平动 由正弦定理得: 34.34=βcm/s 55.566.115sin 2r =︒=AA v v [5分]向ζ方向投影:2cm/s 45.7=[10分]三、计算题(15分)图示半径为R 的绕线轮沿固定水平直线轨道作纯滚动,杆端点D 沿轨道滑动。
已知:轮轴半径为r ,杆CD 长为4R ,线段AB 保持水平。
在图示位置时,线端A 的速度为v ,加速度为a,铰链C 处于最高位置。
试求该瞬时杆端点D 的速度和加速度。
解: 轮C 平面运动,速度瞬心P 点CO [8分](1) 物块下落距离时轮中心的速度与加速度; (2) 绳子AD段的张力。
解:研究系统:T 2-T 1=ΣW i223C v m +21J C ω2+21J B ω2+221A vm =m 1gs [5分] 式中:2321r m J C =,22ρm J B =代入得:v C =23222113222r m ρm R m gsm r++[7分]式两边对t 求导得:a C =23222113222r m ρm R m grRm ++[10分]对物A:m a=ΣF ,即:m 1a A =m 1g -F AD F AD =m 1g -m 1a A =m 1g -ra R m C⋅1[15分][15六、计算题(15分)在图示系统中,已知:匀质圆柱A 的质量为m1,半径为r ,物块B 质量为m 2,光滑斜面的倾角为?,滑车质量忽略不计,并假设斜绳段平行斜面。
口腔修复学模考试题与参考答案
口腔修复学模考试题与参考答案一、单选题(共100题,每题1分,共100分)1.好的固位体应具备A、有良好的固位形和抗力形B、各固位体之间应有共同的就位道C、材料性能好,边缘密合度高,外形美观,符合解剖形态和生理功能D、能保护牙体组织和牙体活力E、以上条件均应具备正确答案:E2.上颌牙中最弱的桥基牙A、2B、5C、8D、4E、1正确答案:A3.孤立并向近中颊(舌)倾斜的磨牙宜选用A、回力卡B、对半卡C、杆形卡D、联合卡E、环状卡正确答案:E4.复合树脂固化时所发生的聚合收缩是由于采用了A、着色剂B、酚类C、二氧化硅D、过氧化物及叔胺E、甲基丙烯酸酯单体正确答案:E5.一下颌双尖牙,活髓,全冠修复水门汀粘固后第2天出现自发痛,最可能的原因是A、牙髓炎B、合创伤C、根尖周炎D、牙髓充血E、所有选项都不是正确答案:A6.全口义齿试戴时,发现下列哪种情况需要重做A、人工牙颜色不协调B、义齿不稳定C、垂直距离过高D、上下颌中线不对E、试咬合有疼痛正确答案:C7.固定桥的支持是指A、口腔行使各种功能运动时,基牙及支持组织不发生下沉、松动、移位等B、基牙牙冠形态正常,龈牙合高度足够,轴壁聚合度较小,具备良好的固位C、固位体具备足够的摩擦力、粘结力和约束力D、在口腔行使各种功能运动中受到各个方向外力时,能够保持固定桥的平衡而不会出现翘动E、口腔行使各种功能运动时,能够抵抗外力,不致松动或脱落,固位体牢固地固定在基牙上正确答案:A8.可摘局部义齿不稳定的表现,下面描述错误的是A、义齿咀嚼效率低B、义齿游离端基托翘起C、义齿下沉D、义齿旋转E、义齿摆动正确答案:A9.下列哪项不是主诉的内容A、疼痛B、职业C、缺牙D、发音问题E、肿胀正确答案:B10.桩在根管内的长度要求是A、根长的1/3B、根长的1/2C、根长的2/3~3/4D、根长的3/4~4/5E、以上都可以正确答案:C11.牙体预备完毕后一般常用消毒剂是A、75%酒精B、甲醛甲酚C、碘伏D、樟脑酚E、木榴油正确答案:A12.全口义齿4~5年最好重新修复,因为A、基托边缘变短B、牙槽骨逐渐吸收C、全口义齿折断D、全口义齿引起软组织损伤E、全口义齿不美观正确答案:B13.以下哪种情况适宜做全瓷覆盖A、深覆牙合,覆盖小B、覆牙合、覆盖正常C、牙合力较大的前牙D、固定桥的固位体E、以上都不对正确答案:B14.下列哪一项违背合支托的制备原则:A、合支托凹的形状应近似匙形B、合支托凹的颊舌向宽度应约等于基牙颊舌径的C、合支托凹底与基牙长轴平行D、合支托凹的深度一般不应到达牙本质层E、合支托凹底与邻面相交的线角应磨圆钝正确答案:C15.下列哪项属于牙体缺损修复的治疗原则A、正确的恢复形态与功能B、患牙预备时尽可能保存保护牙体组织C、修复体应保证组织健康D、修复应合乎抗力形和固位形的要求E、以上均是正确答案:E16.修复开始前需要进行的口腔内检查是A、口腔一般情况B、牙周情况检查C、牙列和缺牙区或无牙颌D、(牙合)关系以及原有修复体E、所有选项均包括正确答案:E17.全冠修复体采用龈上边缘的最主要优点是A、不易附着菌斑B、对龈刺激小C、不易附着牙垢D、边缘密合E、美观性好正确答案:B18.固定义齿修复后引起龈炎,必须拆除后重新制作固定桥,除了A、龈组织受压B、修复体颊舌侧轴面外形恢复不正确C、接触点不正确D、黏固剂未去净E、固位体边缘不贴合正确答案:D19.铸造全冠牙体预备正确的顺序是A、颊舌面预备→邻面预备→合面预备→肩台预备B、邻面预备→合面预备→颊舌面预备→肩台预备C、颊舌面预备→肩台预备→合面预备→邻面预备D、合面预备→颊舌面预备→邻面预备→肩台预备E、颊舌面预备→邻面预备→肩台预备正确答案:D20.以下关于鸠尾固位形的说法哪个是错误的A、可增加修复体的固位力B、鸠尾峡的宽度为合面宽度的1/2左右C、可防止修复体的水平脱位D、鸠尾峡应位于合面牙尖三角嵴之间E、鸠尾的制备对预备体的抗力有影响正确答案:B21.影响黏结力的因素A、黏结强度与材料种类B、黏结面积和被黏结面的状况C、技术操作因素D、应力因素、界面封闭因素和腐蚀因素E、以上均为影响因素正确答案:E22.牙列缺损Kennedy分类第一类A、双侧非游离端缺失B、双侧游离端缺失C、单侧非游离端缺失D、单侧游离端缺失E、前牙缺失正确答案:B23.患者戴全口义齿后1周复诊,诉牙床疼痛无法戴用,检查发现下颌后牙区牙槽嵴顶部黏膜较大范围充血糜烂,右上颌结节处颊侧有一溃疡。
同济大学2007-2008学年第一学期系统解剖学期末考试试题A
同济大学2007-2008学年第一学期系统解剖学期末考试试题A一、一名词解释(每小题5分,共25分)(总题数:5,分数:25.00)1.medial lemniscus__________________________________________________________________________________________ 内侧丘系(medial lemniscus):薄束核(0.5),楔束核(0.5),丘系交叉(1), 中线两侧、锥体束后方(1),背侧丘脑(1),功能(0.5),损伤(0.5))2.hypoglossal nucleus__________________________________________________________________________________________ 舌下神经核(hypoglossal nucleus): 舌下神经三角深面(1),接收纤维(1),发出纤维(0.5),经锥体与橄榄之间(1),舌内外肌(1),损伤(0.5) )3.coronary sinus__________________________________________________________________________________________ 冠状窦:心膈面、左房室之间的冠状沟(1),心大、中、小静脉(各1分),开口(1分) )4.cavernous sinus__________________________________________________________________________________________ 海绵窦:蝶鞍(0.5分),两层硬脑膜间的间隙(0.5),内容:颈内动脉(0.5)、展神经(0.5),三叉(0.5)、滑车(0.5)、V1(0.5),V2(0.5),交通(1分)。
)5.hepatic porta__________________________________________________________________________________________ 肝门:脏面(0.5分),横沟(1分).肝左右管(1分), 肝固有动脉(1分),门静脉(1分),神经,淋巴管(0.5分).)二、二填空题(每空1分,共25分)(总题数:10,分数:25.00)6.椎动脉发自,与肱深动脉伴行的神经是(分数:2.50)填空项1:__________________ (正确答案:锁骨下动脉、桡神经)7.inferior mesenteric artery 发出、和三分支(分数:2.50)填空项1:__________________ (正确答案:左结肠动脉、乙状结肠动脉、直肠上动脉)8.E-W核的节后纤维分布于和肌。
同济大学高等数学考试试题pdf
A. ( f (b) − f (a))( g(b) − g(a)) < 0
B.
f '(x) g '(x) < 0
C. ∫ f (x)dx∫ g(x)dx < 0
b
b
D. ∫a f (x)dx∫a g(x)dx < 0
9) If F (x) is an antiderivative of f (x) , C is any constant, then ____ is correct.
A. F (x) = C∫ f (x)dx
C. F '(x) = f (x) +C
x
∫ B. F (x) = f (x)dx C
D. F (x) = lim f (x + h) − f (x)
h→∞
h
10) a and b are in the domains of f (x) and g(x) , then ___ is correct.
7) If l= im f (x) li= m f '(x) 0, lim f ''(x) ≠ 0 but exists, then ________.
x→a
x→a
x→a
A. lim f (x) = 0, x→a f '(x)
B. lim f (x) ≠ 0 but exists, x→a f '(x)
C. lim f (x) = ∞, x→a f '(x)
D. lim f (x) ≠ ∞ but does not exist. x→a f '(x)
8) If f (x) is a continuous on interval [a,b], then in [a,b], f (x) at least have_ __
(2)--口腔正畸学期末考试参考答案1
正畸学考试试题(一)参考答案一.名词解释(20分 每题5分)1.潜行性骨吸收 在压力侧牙槽骨部分区域出现透明样变,在相对于透明样变区内的骨质和透明样变周围的骨质中出现大量破骨细胞、骨质吸收,这种骨质吸收的方式称为潜行性骨吸收。
2。
稳定支抗 同一个或同一组牙齿发生整体移动比发生倾斜移动所需的力大,利用一个或一组牙的整体移动来支持一个或一组牙的倾斜移动,使整体移动的部分不动或仅移动少量,而倾斜移动的部分达到理想的移动效果。
这种支抗方式称为稳定支抗。
3.生长中心 在骨的生长过程中,速度快、较活跃的部分称为生长区;而某些受遗传控制并独立进行生长的生长区称为生长中心。
所有的生长中心都是生长区,但生长区并不一定都是生长中心。
4.Bolton指数 指上下前牙牙冠宽度总和的比例关系与上下牙弓全部牙牙冠宽度总和的比例关系,由Bolton首先提出。
分为前牙比和全牙比。
用于判断牙齿大小的协调是否有问题,可协助诊断和分析错牙合形成的机制,并可作为制订治疗计划时的参考因素之一。
二、问答题 (80分)1、矫治后复发的因素有哪些?(10分)答 (1)、肌动力平衡的最终改建尚未完成。
在错牙合畸形的形成过程中,形成了与畸形相适应的动力平衡;畸形形态的矫治完成往往先于功能和动力的改造,这样,畸形形态矫治完成后,旧的动力平衡的影响导致畸形的复发。
(2) 牙周膜纤维张力未恢复平衡。
牙周组织的改建对牙的稳定和牙保持在平衡的位置都是很重要的,在牙龈结缔组织纤维和牙周膜纤维的张力建立起新的平衡前,牙不能稳定于新的位置。
(3) 牙合的平衡尚未建立。
牙的咬合关系是决定矫治后牙的新位置稳定性的最强有力的因素。
矫治后,改变了上下牙、牙弓、颌骨的位置,建立的新的牙合关系在上下颌牙的牙尖斜面关系未经牙合调整达到平衡前,错牙合有复发的趋势。
(4) 口腔不良习惯未破除。
不良习惯于建立畸形的肌肉动力平衡有关;造成畸形的不良习惯不破除,易造成畸形复发。
理论力学期末考试试卷(含答案)讲解
同济大学课程考核试卷(A 卷) 2006— 2007学年第一学期命题教师签名: 审核教师签名:课号: 课名:工程力学 考试考查:此卷选为:期中考试( )、期终考试( )、重考( )试卷年级 专业 学号 姓名 得分一、 填空题(每题5分,共30分)1刚体绕O Z 轴转动,在垂直于转动轴的某平面上有A ,B 两点,已知O Z A =2O Z B ,某瞬时a A =10m/s 2,方向如图所示。
则此时B 点加速度的大小为__5m/s 2 ;(方向要在图上表示出来)。
与O z B 成60度角。
2刻有直槽OB 的正方形板OABC 在图示平面内绕O 轴转动,点M 以r =OM =50t 2(r 以mm 计)的规律在槽内运动,若t 2=ω(ω以rad/s 计),则当t =1s 时,点M 的相对加速度的大小为_0.1m/s 2_;牵连加速度的大小为__1.6248m/s 2__。
科氏加速度为_22.0m/s 2_,方向应在图中画出。
方向垂直OB ,指向左上方。
3质量分别为m1=m ,m 2=2m 的两个小球M 1,M 2用长为L 而重量不计的刚杆相连。
现将M 1置于光滑水平面上,且M 1M 2与水平面成︒60角。
则当无初速释放,M 2球落地时,M 1球移动的水平距离为___(1)___。
(1)3L; (2)4L; (3)6L; (4)0。
4已知OA =AB =L ,ω=常数,均质连杆AB 的质量为m ,曲柄OA ,滑块B 的质量不计。
则图示瞬时,相对于杆AB 的质心C 的动量矩的大小为__122ωm L L C =,(顺时针方向)___。
5均质细杆AB 重P ,长L ,置于水平位置,若在绳BC 突然剪断瞬时有角加速度α,则杆上各点惯性力的合力的大小为_gPL 2α,(铅直向上)_,作用点的位置在离A 端_32L _处,并在图中画出该惯性力。
6铅垂悬挂的质量--弹簧系统,其质量为m ,弹簧刚度系数为k ,若坐标原点分别取在弹簧静伸长处和未伸长处,则质点的运动微分方程可分别写成_0=+kx x m_和_mg kx x m =+ _。
07年口腔统考试卷
【转贴】2007口腔全国统考试题多选题,每题2分1、喉上神经外支走行2、升颌肌群有哪些3、含有未分化间充质细胞的组织有哪些?4、矫治后进行保持的原因5、变态反应性口炎6、有利于细菌在牙面定居的因素有?7、Knight和North分类中,复位后不稳定的类型?8、中分化磷癌好发的组织有?9、牙挺工作原理10、血管瘤生物学行为11、嵌体预备与充填洞形之区别12、RPD基托与天然牙的关系13、覆盖义齿采取截根术的目的14、游离端义齿减轻基牙负担的手段单选题:1、有好多题涉及到了安氏分类与牙合型、面形的特点2、手足口病的病原体为?3、艾滋病相关口腔病损?4、乳牙缺失后间隙关闭需要的时间?5、病毒感染性疾病(选项为口腔粘膜常见疾病)为?6、天疱疮的特有临床表现为?7、乳牙龋好发牙位为?8、乳磨牙牙髓感染易扩散至根分叉原因?9、慢性牙周炎洁治器械放入时,器械头与根面的交角为多少度?10、牙周基本治疗第一阶段复查的间隔为?11、长期服用治疗高血压药物致药物性牙龈增生的治疗方案?12、拔牙禁忌症13、局麻药一次最大剂量(考到利多卡因)14、眶下孔的解剖标志15、干槽症的致病原因16、影响种植体骨结合的因素有?17、腐败坏死性病原菌导致的口底蜂窝织炎的临床表现?18、时相特异性化疗药物为?19、面裂、唇裂发生的原因(口组中哪些突起未联合所致)?20、多形性腺瘤的切除范围?21、正常开口度为?22、舍格伦综合症为性疾病23、涎绞痛为什么病变的临床表现24、不会引起开口受限的疾病为?25、角化囊肿囊液内容物性状?26、颞下颌关节疾病开口不会偏向患侧者为?27、鳞癌占恶性肿瘤的比率?28、颞下颌关节疾病(选项较长,未抄全)29、全瓷冠舌侧肩台预备30、无牙颌垂直距离的最常用测量方法?31、嵌体的缺点?32、人造冠粘固后数日内发生疼痛原因?33、减小牙合力的方法?34、便于RPD取戴的方法?35、肯氏分类(很简单的哦)36、嵌体预备洞缘斜面的斜度37、卡环体位于基牙轴面非倒凹区的作用?38、RPD对半卡环的适应证?39、颌间距离名词解释40、不属于种植牙范畴的结构是?41、上前牙3/4冠邻面轴沟与平行?42、上前牙3/4缺损的修复方式为?43、与下颌神经管关系最密切的牙齿为?44、颧牙槽嵴的解剖及其解剖学意义45、尖牙窝的位置?46、右侧下颌骨切除后引起吞咽困难是因损伤了什么结构?47、男,29Y,右上睑下垂,右瞳大于左瞳,右眼球疼痛,运动障碍,右上牙疼痛,则病变部位为?(选项为翼静脉丛?眶上裂?颞下窝?上颌牙槽突?海绵窦?)48、上颌中切牙解剖外形比较?49、与颞下颌关节有关解剖结构不包括?颞下颌韧带?盘锤韧带?盘侧韧带?茎突下颌韧带?双板区?50、男,18Y,自感咬合不适,其侧向咬合关系不可能为?工作侧尖牙接触,对侧无接触工作侧无接触,对侧仅尖牙接触工作侧无接触,对侧仅个别后牙接触工作侧多个后牙接触,对侧个别后牙接触工作侧多个后牙接触,对侧牙无接触51、男,27Y,右上中切牙折裂,拔除时作用力?52、上颌4、5形态差异不包括?53、无釉柱釉质指?54、修复性牙本质的组织学特点?55、罩牙本质?56、成釉细胞瘤临近釉基质一侧组织学特点?57、可见角质栓疾病为?58、神经嵴细胞形成的硬组织不包括?59、牙源性角化囊肿术后复发之原因?60、PAS、淀粉酶染色呈阳性的疾病(瘤)?61、各种瘤的特性62、头影测量的基准平面为?63、平导的作用?64、安氏分类?65、Bolton指数分析的目的?66、吮拇指习惯会导致?67、不应在乳、替牙期矫治的疾病(本题选轻度牙列拥挤错位)68、矫治器与矫治技术69、19岁男需要矫正治疗,进行矫正前检查,不需要的手段是:(记得自己当时选了拍手腕骨X线片)70、恒牙变异最多的牙齿为?71、对发音影响最大的牙合型是?72、与腮腺导管解剖关系最不密切者?73、慢性龋临床表现74、牙髓炎疼痛特点?75、氟牙症临床表现(记得当时自己感觉最有争议的两个选项:A、4岁后迁入高氟区不会得氟牙症,E、氟牙症患者对弱酸性食物抗酸能力强。
同济大学课程考核试卷A卷试题及答案
同济⼤学课程考核试卷A卷试题及答案同济⼤学课程考核试卷(A卷)答案2013 — 2014 学年第⼆学期命题教师签名:审核教师签名:课号:课名:建筑混凝⼟结构设计考试(√)考查()此卷选为:期中考试( )、期终考试(√)、重考( )试卷,开卷()、闭卷(√)年级专业学号姓名得分⼀、填空题(共15题,每题1分,共15分):1.常见的楼盖结构型式有:肋梁楼盖、井式楼盖、⽆梁楼盖、密肋楼盖和扁梁楼盖(3个即可)等2.楼盖结构的板⼀般不进⾏抗剪承载⼒验算,这是因为(⼤意)楼盖结构的板⼀般属于薄板,⽽根据弹性薄板理论和钢筋混凝⼟板试验结果,楼盖结构的板破坏⼀般由受弯控制,受剪破坏不起控制作⽤。
3.按弹性理论计算⽆梁楼盖的内⼒(弯矩)的⽅法有:弯矩系数法或等代框架法(填⼀个⽅法的名称即可)。
计算⽆粘结预应⼒混凝⼟楼盖的内⼒(弯矩)的⽅法有等效荷载法(填⼀个⽅法的名称即可)。
4.铺板式装配式楼盖设计中,如果预制板铺排后还剩有空隙,可采⽤采⽤调缝板、扩⼤板缝、跳砖、局部现浇(填写2个即可)措施加以处理5.⼤型屋⾯板与屋架上弦有三点焊接时,可以认为屋⾯板起到了上弦⽔平⽀撑的作⽤。
6.当⼭墙抗风柱与屋架下弦连接时,应设置下弦横向⽔平⽀撑。
7.在起重量和⼩车⾃重相同的条件下,软钩吊车的横向⽔平制动⼒⽐硬钩吊车的⼩。
8.钢筋混凝⼟屋架的主要形式有三铰拱屋架、折线形屋架、梯形屋架等。
9.在地震设防区建造钢筋混凝⼟多层框架结构房屋,应采⽤纵横向框架混合承重⽅案。
10、当框架的层数不多或⾼宽⽐不⼤时,框架结构的整体变形主要呈现为剪切型,框架结构的总体弯曲变形主要是由柱的轴向变形引起的。
11.关于框架结构的反弯点,上层梁的线刚度增加会导致本层柱反弯点下移。
12.确定框架竖向可变荷载的最不利位置时,可采⽤满布荷载法的条件是当活荷载产⽣的内⼒远⼩于恒荷载及⽔平⼒所产⽣的内⼒时。
13.剪⼒墙墙肢的斜截⾯破坏可归纳为三种破坏形态,即斜拉破坏、斜压破坏、剪切破坏。
同济大学课程考试试卷(A卷)
同济大学课程考试试卷(A卷)2006-2007学年第一学期命题教师签字:审核教师签字:课号:14019 课名:口腔正畸学考试考查:考查此卷选为:期中考试()、期终考试()、重考考试()年级___________ 专业_____________ 学号_____________姓名_____________ 得分_____________一、名词解释(共计32分,4分一个)1. 错合畸形 (英文名称:):2. 替牙间隙(英文名称:):3. 差动力原理4. 咬合重建5. 锁牙合6. 辅助性正畸7. 阻抗中心8. 直接性骨吸收二、简答题(共计28分,7分一个)1.简述常见牙移动类型。
2.简述与牙弓拥挤度相关几个重要因素。
3. 如何诊断骨性前牙反牙合?4. 牙列拥挤矫治时改变牙量和骨量不调的原则和方法?三、问答题(共计40分,第一题10分,第二、三题每题15分)1.你认为哪些因素可导致正畸治疗后复发?2.在正畸拔牙时应考虑的因素有哪些?3.试列举反应牙齿、颌骨及面部软组织结构前后向位置及相互关系的X线头影测量项目十项,并解释其临床意义。
06/07学年第一学期20XX级口腔医学本科生口腔正畸学(A卷答案)一、名词解释(共计32分,4分一个)1.错合畸形(英文名称:malocclusion ):是指儿童在生长发育过程中,由先天的遗传因素或后天的环境因素,如疾病、口腔不良习惯、替牙异常等导致的牙齿、颌骨、颅面的畸形,如牙齿排列不齐。
上下牙之间的合关系异常、颌骨大小形态位置异常等。
2.替牙间隙(英文名称:leeway space ):(4分)乳尖牙及第一、二乳磨牙的牙冠宽度总和,比替换后的恒尖牙合第一、二前磨牙大,这个差值称为替牙间隙,即替牙间隙=(Ⅲ+Ⅳ+Ⅴ)-(3+4+5)。
3. 差动力原理1956年Begg介绍了差动力概念。
根据差动力原理,当单根前牙与多根后牙之间使用交互微力(例如60g)牵引时,前牙相对快速倾斜后移,而后牙几乎不动。
口腔本科期末试题及答案
口腔本科期末试题及答案在此,我为您准备了一份关于口腔本科期末试题及答案的文章,旨在为口腔医学学生提供备考参考。
请您阅读以下内容,希望能够满足您的需求。
--------------------------------------------------------------------口腔本科期末试题及答案尊敬的口腔医学学生们,你们好!期末考试即将来临,为了帮助大家做好充分的复习准备,我们为你们准备了一套口腔本科期末试题及答案。
希望这份试题和答案能够对你们复习起到一定的帮助。
第一部分:单项选择题(共40道题,每题1分,共40分)1. 口腔细菌感染最常见的途径是:A. 接触传播B. 空气传播C. 血液传播D. 垂直传播答案:A2. 下列哪种细菌是牙周炎的病原菌:A. 口腔链球菌B. 绿脓杆菌C. 麻风杆菌D. 法氏耶尔森菌答案:B3. 智齿的正常发生年龄是:A. 16-19岁B. 20-25岁C. 26-31岁D. 32-35岁答案:B4. 口腔癌最常发生的部位是:A. 唇部B. 舌部C. 颌骨D. 牙龈答案:B......第二部分:问答题(共5道题,每题10分,共50分)1. 请简要说明牙周炎的病因和分类。
答案:牙周炎是一种以牙周组织炎症为基本病变的疾病,主要由细菌感染引起。
根据牙周炎的严重程度,牙周炎可分为轻度、中度和重度牙周炎。
轻度牙周炎主要表现为牙龈充血、轻微水肿和牙结石的形成;中度牙周炎的症状包括牙龈出血、牙龈退缩和牙周袋的形成;重度牙周炎又称为深度牙周炎,常见严重的牙周袋形成、牙槽骨吸收等。
2. 请列举常见的口腔癌症状和早期诊断方法。
答案:常见口腔癌的症状包括口腔溃疡、口腔出血、牙龈肿胀、吞咽困难等。
早期诊断口腔癌的方法主要有口腔镜检查、组织活检和影像学检查等。
3. 请解释下列术语:牙髓炎、根尖周炎、牙龈炎。
答案:牙髓炎是指牙齿的髓腔内发生炎症,症状常为牙齿剧烈疼痛。
根尖周炎是指牙齿根尖周围的组织发生炎症,临床症状包括牙齿敏感、根尖周围有肿胀、牙龈出血等。
同济大学课程考试试卷A卷
同济大学课程考试试卷A卷2007-2022学年第一学期命题教师签字:审核教师签字:课号:14019课名:口腔正畸学考试考查:考查此卷选为:期中考试()、期终考试()、重考考试()年级___________专业_____________学号_____________姓名_____________得分_____________题类一二三合计总分得分322444100一、名词解释(共计32分,4分一个)1.个别正常合(英文名称:):2.面横平面或眼耳平面(英文名称:):3.开牙合4.牙齿的过度矫治5.早期矫治6.咬合重建7.旋转中心8.间接骨吸收二、简答题(共计24分,8分一个)1.简述人体不同组织系统发育与年龄的关系。
2.前牙深覆盖按病因机制可分为哪几类?3.根据作用力类型简述早期生长控制的常见治疗方法。
三、问答题(共计44分,第一题12分,第二、三题每题16分)1.在正畸拔牙时应考虑的因素有哪些?2.试述下颌骨的三向生长?3功能矫治器的作用原理、共同特点和适应症?07/08学年第一学期2004级口腔医学本科生口腔正畸学(A卷答案)一、名词解释(共计32分,4分一个)1.个别正常合(英文名称:individualnormaloccluion):凡轻微的错牙合畸形,对于生理过程无大妨碍者,都可列入正常牙合范畴。
这种正常范畴内的个体牙合,彼此之间又有所不同,故称之为个别正常牙合。
2.面横平面或眼耳平面(英文名称:FH.Frankforthorizontalplane):由耳点和眶点连线组成。
大部分个体在正常头位时,眼耳平面与地面平行。
3.开牙合开颌主要是上下牙弓及颌骨垂直象发育异常,具体表现在前段牙、牙槽和颌骨高度发育不足,后段牙,牙槽或颌骨高度发育过度,或二者皆而有之。
其临床表现是上下颌牙在正中颌位及下颌功能运动时无颌接触。
4.牙齿的过度矫治对错位严重且容易复发的牙颌畸形,在矫治过程中实行的一种有效预防复发的手段。
同济大学线性代数期末考试试题(多套)
二、(12 分)
⎧
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x3 = λ
问 λ 取何值时,该方程组有唯一解、无解或有无穷多解?当解不唯一时,求出所有的解.
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是
.
(A) 向量组 β ,α2 ,α3 线性无关.
同济大学课程考核试卷(A 卷)
2009—2010 学年第二学期
一、(24 分) 填空与选择题,其中选择题均为单选题.
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同济大学《大学英语》2019-2020第二学期期末试卷
同济大学《大学英语》2019-2020第二学期期末试卷课程名称专业班级备注:学生不得在试题纸上答题(含填空题,选择题等客观题)English Test PaperPartl. From the four choices given,choose the one that best completes the sentence. (%0c)1.As the fire was nearty out and i was getting late,they prepared to__for the night.A.sit upB.retire D.retumC.stay up2.Tension within a family__or eliminated when the family,as a whole,is threatened by an extemal force.A.is often relivedB.often relaxedC.Is often relievedD.ofen released3. He picked up his__and put it in hNis pocket.A.resolutionB.resolveC.determinationD.revolver4.The mosquitoes that pass on malaria are becoming resistant to the__now used against them.A.poisonsB.capsulesC.chemicalD.pills5.__she saw the serlous concem on Li Gong's face that she agreed to let him try again.A.It was not untilB.UntilC.It was untilD.Not until6.__whether I am going to China.A. It is not already settledB.It is yet settledC.It is not yet setledD.It is still settled7.There remained nothing but to get the canoe into the water.However,all my__to get i into the water failed.A.equipmentB.toolsC.instrumentD.devices8. It is I__want to leave you,__I have to.A.not that hactause ofB.becausebutC.not that--·butD.not because--because9.Toms styie of travel was interesting-he must__the land as much as possible.A. live off D.be fed onB.be fed up withC.be lived on10.The name of Chaplin__the image of a littie tramp with a brush mustache.A.conjures upB.occurs toes uponD.runs through11.With night__We started for home.A.moving alongB.went bying onD.dragged on12.Will this new oil recovery technique be financially__A.representationB.feasibleC.characteristicsD.diffusion13.Today.getting a new heart is no longer silly. It is now a__A curiosity B.novety C.reality D.application14.Obviously,the white bird in the story has a___meaning of freedom.A.symbolicB.symbolC.symbolizeD.symbolism15.The search was__when the fog got thicker.A started B.called off C.postponed D.continued16.Let's__our resources and get the job done quickly.e upB.poolC.conserveD.store up17.Mrs.Jones__the suspect by the scar on his face.A. identifiedB.found outC.discoveredD.coincided18.The landlady could not__because al her rooms were bookedB.put up with usA.adapt us C.accommodate us D.hetp us19.The economic crisis has serously__French exports.A.stimutatedB.simulatedC.affectedD.increased20.What___is simply that he is not wiling to give us his support.A amounts to B.matters C.teaches D.signals21.The train will__from Platform 2 at 3:45 on Tuesday moming.A.arriveB.stopC.departD.deral22.The young girl took the cheese and__to eat.mencedmendedC.renouncedmented23.A judge must be-when weighing evidence.B.detachedA.interested C.separated D.disconnected24.These courses,f property conducted,will___the minds of the students.A.refreshB.renewC.stimulateD.encourage25.That way of speaking is__people in this part of the country.A.strange toB.odd toC.peculiar tbD.particular about26.He___as though he had never in his life seen me before.A.went pass meB.avoided meC.passed me byD.went away from me27.He had been__to give up much of his time to housework.A.orderedD.fnightenedpelledC.persuaded28.He__that he could create live fish out of chemicals.A.daimedB.demandedC.arguedD.announced29.The best students are___special scholarships.A.rewardedB.awardedpensatedD.refused30.Living on an isolated farm,they do not see anybody for weeksA.in the endB.on endC.off and onD.endlesslyPart Il. Reading Comprehension(40%)Passage oneIf you are like most people,your intelligence varles from season to season. Your are probably a lot sharper in the spring than you are at any other time of year.A noted scientist,Ellsworth Huntington,conduded from other men' svork and his own among peoples in different climates and temperature have a definite effect on our mental abilities.He found that cool weather is much more favorable for creative thinking than is summer heat. This does not mean that all people are less intelligent in summer than they are during the rest of the year.It does mean,however,that the mental abilties of large numbers of people tend to be lowest in summer.Spring appears to be the beat period of the year for thinking.One reason may be that in the spring man' s mentalbilities are affected by the same factors that bring about great changes in all nature. Fall is the nexl-best season,then winter.As for summer, it seems to be a good time to take a long vacation ftrom thinking31.According to the passage,man' intelligenceA Stays the same throughout the yearB.Varies from day to dayC.Changes with the seasonsD.Changes from year to year32.Elsworth Huntington decided that climate and temperature haveAa great effect on everyone intelligeneeB. some effect on most people intelligenceC. some effect on a few people InteligenceD. no effect on most people intelligence33.Elsworth Huntington s conclusion was based onA variations of his own mental abilities from season to seasonB.the results of research done by him and other scientists among peoples in different climatesC.detailed records of temperature changes in different placesD.detailed records of different ways of thinking among peoples on different climates34.Why does the author say summer is a good time to take a long vacation from thinking?A. Because a long vacation in summer helps to Improve people ·poventalB.Because people tend to be less creative during summer.C.Because summer is a good time for outdoor activitiesD.Because mental exertion in the summer heat taxes too much of people energy.35.The central idea of this passage isA.man' s mental abilities change from season toseasonB.man' s intelligence varies from place toplaceC.man should take a long vacation in summerD.if you want to do creative thinking.go to a cool placePassage TwoOn November 19,1863,Abraham Lincoin went to Gettysburg in Pennsylvania to speak at the National Soldiers Cemetery The Civi War was still going on.There was much criticism of President Lincoln at the time He was not at all popular.He had been Invited to speak at Gettysburg only out of courtesy.The principal speaker was to be Edward Everett,a famous statesman and speaker of theday.Everett was a handsome man and very popular everywhere.It is said that Lincoin prepared his speech on the train while going to te that night,alone in his hotel room and tire out,he again worked briefly on the speech.The nextday Everett spoke first. Ho spoke for an hour and 57 minutes.His speech was a perfectexample of the rich oratory of the day.Then Lincoln rose.The crowd of 15.000 people atfirst paid llttle attention to him.He spoke lor only nine minutes.Al the end there was ittle applause.Lincoln tumed to a friend and remarked.I have failed again. to Washington he commented sadly.“Thatpeech was a fat failure,and the people are disappointed.-On ttSome newspapers at first criticized the speech.But little by Ittle,as people read the speech, they began tb understand better.They began to appreciate ts simplicity and its deep meaning. It was a speech which only Abraham Lincoln could have made.Today,every Amencan school child leams Lincoln urg Addeetystear. Now everyone thinks of t as one of the greatest orations ever given in American history.36.In 1863,Abraham Lincoln wasA.very criticalB.unpopularC.very popularD.very courteous37.Lincoln was invited to speak at the National Soldiers Cemetery Because he wasA.a famous oratorB.very handsomeC.President of the United States at the timeD.a poputar statesman38.It can be inferred from the text thatA.Lincoln prepared his speech very carefully before he went to GettysburgB.Lincoln was very busy at the time and didn t have much time sperobare hisC.Lncolns speech was ful of richatoryD.Lincolns speech was vinyg39.Lincoln's speecsA.An immediate successB.Warmly applaudedC.A total falureD.Not well-received at first40.Which of the following statements is NOT true?A.Lincoln's Gettysburg Address has deepaning.B.Lincolns Gettysburg Address is simple btyleC.Lincoln 's Gettysburg Address is memorized by every American schoohild.D.Lincolns Gettysburg Address is the greatest speech ever delivered in the Unit6cates. Passage ThreeA flag is more than a piece of coth.It stands for a nation beople-their land,history,and ideals.Iceland lag,for instance,stands for features of the land.Red is for the fire of Iceland Voicanoes.(火山)White is for ice.Blue is for te mountains.On India nag.the blue wheel stands for peace and progress.The white stripe(条纹)behind it is for truth.The black stripe on the fag of Malawi stands for the Negro people of that African tand.The red stripe represents(f代表)the blood they shed to free themselves from foreign rule.When the people of any nation see their flag fying.they feel proud.They love and honor the flag as the symbal(象征)of their country.41.The nag of Iceland isA.red and whiteB.blue and greenC.black,white,and redD.red,white,and blue42.The white stripe on India's fing standsA. ice and mountainsB.peace and progressC.waterfallsD.truth43.India 's flag stands mostly ttreA feature of the land B.riches of the sollC.ideals of the peopleD.history of the country44.The red on Malawl s fag reminds the penfpleA.the many volcanoes in their landB.the beauty of their countrysideC.their fight for freedomD.their need to make progress45.The most important thing about a flag isA. what it stands forB.when it is usedC.what it is made ofD.how big it isPassage FourWarm water freezes more quickly than cold. Sir Francis Bacon said that almost four hundred years ago.But few people believed him -till 1970.In that year Canadian scientist George Kell proved the English scholar was right.Dr.Kel filled an open pail with cold water. He exposed both to the same low temperature.The warm water troze first.The lack (缺少)of covers on the pails was the secret.Some of the warm water changed to vapor. (水蒸气()It evaporated(蒸发)Into the air.This meant that less of the warm water was left to freeze.And so the wam water froze faster than the cold water -even though it had a greater temperature drop to make.46.Sr Francis Bacon wasA.an American experimenterB.a Canadian scientistC.an English scholarD.an Austraian writer47.Dr.Kells pails webethA.filled wlth waterB.left uncoveredC.exposed to the same temperatureD.all of the above48.The second paragraph tells whyA.Dr.Kell was studying waterB.the warm water froze firstC.Dr.Kell used pails in his workD.water freezes in underground pipes49.No water vapor would have escaped into the air if the pails had beenA.warmedB.coveredC.shakenD.filed50.The cold water troze more slowty becauseA. salt was added to nB.its pail was smallerC.there was more of it leftD.the air near it was moving111.Cloze(10%)I've really got to do something to lose weight.because l'm geting much too fat.I w worrled aboutt_51_I went to see the doctor.He told me that I'probably have a heart _52_unless I started eating less.When you·reon a diet faave toptation to eat 54though you feel hungry.This may be very hard to do and you certainly need a lot of strength to succeed.So 1'going to a health farm for a month where l won' be able to eat and sol"ha_to my diet They will also 56 me take plenty of exercise, 57_won' t do me any harm either.Both the diet andthe exercise will 58 me to lose weight and feel itter.I'm temibly easily Inffuenced by other people.Wheneverl see someone having a drink in a TV program,I feel 59_a drink myself and it's the same with cigarettes and food.So wish me luck,when you see me again,1_60_diffdrbetlooked that you won'trecogniebB.aferC.before51.A although D.until52.A disease B.break C.attack D.damage53.A bear B.resist C.endure D.retreat54,A.as B.even C.H D.despite 55.A.Insist B.holdC.stickD.keep56.A advise B.force C.make D.instruct57.A this B.that C.what D.which58.A make B.help C.assure D.causeB.lke59.A desire C.want D.hope60.A also B.too C.so D muchIV.Translation:(20%)1.她行医至今已有三年零四个月了。
理论力学期末考试试卷(含答案)
同济大学课程考核试卷(A 卷) 2006— 2007学年第一学期命题教师签名: 审核教师签名:课号: 课名:工程力学 考试考查:此卷选为:期中考试( )、期终考试( )、重考( )试卷年级 专业 学号 姓名 得分一、 填空题(每题5分,共30分)1刚体绕O Z 轴转动,在垂直于转动轴的某平面上有A ,B 两点,已知O Z A =2O Z B ,某瞬时a A =10m/s 2,方向如图所示。
则此时B 点加速度的大小为__5m/s 2 ;(方向要在图上表示出来)。
与O z B 成60度角。
2刻有直槽OB 的正方形板OABC 在图示平面内绕O 轴转动,点M 以r =OM =50t 2(r 以mm 计)的规律在槽内运动,若t 2=ω(ω以rad/s 计),则当t =1s 时,点M 的相对加速度的大小为_0.1m/s 2_;牵连加速度的大小为__1.6248m/s 2__。
科氏加速度为_22.0m/s 2_,方向应在图中画出。
方向垂直OB ,指向左上方。
3质量分别为m1=m ,m 2=2m 的两个小球M 1,M 2用长为L 而重量不计的刚杆相连。
现将M 1置于光滑水平面上,且M 1M 2与水平面成︒60角。
则当无初速释放,M 2球落地时,M 1球移动的水平距离为___(1)___。
(1)3L; (2)4L; (3)6L; (4)0。
4已知OA =AB =L ,ω=常数,均质连杆AB 的质量为m ,曲柄OA ,滑块B 的质量不计。
则图示瞬时,相对于杆AB 的质心C 的动量矩的大小为__122ωmL L C =,(顺时针方向)___。
5均质细杆AB 重P ,长L ,置于水平位置,若在绳BC 突然剪断瞬时有角加速度α,则杆上各点惯性力的合力的大小为_g PL 2α,(铅直向上)_,作用点的位置在离A 端_32L_处,并在图中画出该惯性力。
6铅垂悬挂的质量--弹簧系统,其质量为m ,弹簧刚度系数为k ,若坐标原点分别取在弹簧静伸长处和未伸长处,则质点的运动微分方程可分别写成_0=+kx xm _和_mg kx x m =+ _。
05级7年制期末考试(a卷)《口腔颌面外科学》
学院:_____专业:_______年级:_____班级:____姓名:__________学号:__________中山大学2008学年度第二学期期末考试试卷课程名称:05级口腔七年制《口腔颌面外科学》理论考试类型:A卷考试时间:150分钟考试方式:闭卷考试日期:2009年07月06日8:30~11:00《中山大学授予学士学位工作细则》第六条:“考试作弊不授予学士学位。
”Ⅰ、Chose the best answer of each question. (1’×20)1. Please select the nerve that should be blocked during the extraction of upper 1st molarA. Anterior palatal N., posterior superior alveolar N., nasoplatine N.B. Posterior superior alveolar N., middle superior alveolar N., anterior palatal N.C. Anterior palatal N., middle superior alveolar N.D. Anterior palatal N., posterior superior alveolar N.E. Nasopalatal N., posterior superior alveolar N., middle superior alveolar N.2. Please select the nerve that should be blocked during the extraction of lower 1stmolarA. Infraorbital N., buccal N., lingual N.B. Mental N., lingual N., buccal N.C. Sublingual N, buccal N, inferior alveolar ND. Lingual N, buccal N, inferior alveolar NE. Posterior superior alveolar N, lingual N, buccal N3. All of the following injections can be used for local infiltration anesthesia exceptA. ProcaineB. LidaocaineC. BupivacaineD. DicaineE. Articaine4. As to the character of general anesthesia in oral and maxillofacial surgery, which answer is false?A. General anesthesia often interferes with operationB. I t’s difficult to keep straightway tracheaC. There is more hemorrhage in operationD. There is less complication in anesthesia convalescenceE. There is a large proportion of the older and enfant in oral and maxillofacial surgery5. The role of the vasoconstrictor is the following exceptA. Prolong the anesthesia timeB. Decrease toxicityC. Prevent allergyD. Decrease hemorrhageE. Decrease absorption6. The main factor which will affect mandibular fracture shift isA. fracture positionB. size and direction of forceC. tooth in fractureD. traction of muscleE. direction of fracture7. As to the order we should comply in check-up of oral and maxillofacial, which answer is false ?A. from front to backB. from out to insideC. from shallow to deepD. compared with left and rightE. compared with upper and lower8. The branches of facial nerve which govern closing eyes areA. Temporal brachesB. Zygomatic branchesC. Buccal branchesD. Marginal mandibular branchesE. Cervical branches9. The inferior alveolar artery is fromA . Maxillary arteryB. External carotid arteryC. Internal carotid arteryD. Facial arteryE. Superficial temporal artery10. The nerve which governs lingual movement isA. Lingual nerveB. Hypoglossal nerveC. Inferior alveolar nerveD. Buccal nerveE. Facial nerve11. Classification system of impacted teeth listed below employs a description of the angulation of the long axis of the impacted third molar with respect to the long axis of the second molar, exceptA. Vertical impactionB. Mesioangular impactionC. Inverted impactionD. Meso- impactionE. Linguoangular impaction12. Which one of the followings is not odontogenic cystA. Periapical cystB. Dentigerous cystC. Odontogenic keratocystD. Nasopalatine cystE. Primordial cyst13. Which one of the following lesions is not real tumorA. FibromaB. CementomaC. EpulisD. OdontomaE. Myxoma14. The oral carcinoma include all of the following excepted forA. Carcinoma of the facial skinB. Carcinoma of the tongueC. Carcinoma of the gingivaD. Carcinoma of the buccal mucosaE. Carcinoma of the hard palate15. For the clinical characteristics of ameloblastoma, the wrong statement isA. commonly occurred in mandibleB. occasionally occurred in fibular boneC. might present as cystic or solid lesionD. occasionally become sarcomaE. not easy to relapse16. Tumor was located in the left edge of tongue and measured as 3cm × 4.5cm in dimension. The mandible was not invaded. An enlarged lymph node was palpated in left submandibular region. The node was measured as 2.5cm. X-ray examination found no distant metastasis. The TNM classification isA. T2N1M0B. T3N1M0C. T2N2M0D. T3N2M0E. T2N1M117. The most common tumor in oral and maxillofacial region is:A. Carcinoma of the tongueB. Carcinoma of the gingivaC. Carcinoma of the buccal mucosaD. Carcinoma of the palateE. Carcinoma of the lip18. In which disease, Sulfur granule can be seen in pus?A. Tuberculosis,B. Actinomycosis;C. SarcoidosisD. Acute pyogenic (Suppurative) parotitisE. Chronic recurrent parotitis19. Which of TMD has trigger points?A. Hypermyofuncioning of lateral pterygoid muscleB. Spasm of lateral ptergoid muscleC. Masticatory muscles spasmD. Myofasicial painE. Symovitis20. The signs and symptoms of anterior disc displacement without reduction are similar to those of spasm of lateral pterygoid muscle, except thatA. There is no spontaneous pain in anterior disc displacement without reductionB. The forced maximum aperture is equal to unforced maximum aperture in anterior disc displacement without reductionC. There is palpation pain in anterior condylar in anterior disc displacement without reductionD. The mandibular movement trajectory in maximum aperture follows a deviation lineE. The mandibular movements are middlingly restricted in anterior discdisplacement without reduction选题答题处Ⅱ. T erm explain. (4’×5)1.Block Anesthesia2.Impacted Tooth3.Functional Neck Dissection4.TMD5.Gustatory Sweating SyndromeⅢ. Answer briefly. ( 6’×5 )1.How to avoid tumor cell being implanted during the operation2.Please describe purpose of incision and drainage of abscess3.Describing the symptom and the treatment principle of trigeminal neuralgia4.Describing the causation of asphyxia of maxillofacial trauma patients5.Describing the healing processes of tooth extraction woundsⅣ.Essay questions. ( 10’×3 )1.State the clinical characters of oral and maxillofacial trauma.2.State the treatment principle of the tumors occurred in oral andmaxillofacial region.3.List the differential diagnosis of ankylosis of temporomandibular andintermaxilliary contraction。
2004级本科生牙合学A卷
同济大学课程考核试卷(A卷)
2006 —2007 学年第二学期
命题教师签名:审核教师签名:
课号:140277 课名:牙合学考试考查:考查此卷选为:期中考试( )、期终考试(√)、重考( ) 试卷
年级专业学号姓名得分
一、名词解释(每个4分,共40分)
1.咬合
2.正中自由域
3.RCP
4.下颌姿势位
5.牙合音
6.开口绞锁
7. 伤害性反射
8. 早接触
9. 创伤性牙合
10. 松弛咬合板
二、问答题(每题12分,共60分)
1. 试述确定铰链轴的临床意义。
2. 调牙合的目的是什么?
装
订
线
内
请
勿
答
题
3.稳定咬合板是什么,其适用范围有哪些?
4.试述磨牙症的治疗原则及相应的处理方法。
5.试述TMD的临床表现有哪些?。
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精品医学考试复习资料
同济大学2006—
2007学年第二学期牙合学期末考试试题A
(总分:100.00,做题时间:90分钟)
一、名词解释(每个4分,共40分)(总题数:10,分数:40.00)
1. 咬合
(分数:4.00)
______________________________________________ ____________________________________________
正确答案:(咬合:指上下牙之间的接触动作或接触
过程。
)
解析:
2.正中自由域
(分数:4.00)
______________________________________________ ____________________________________________
正确答案:(
正中自由域:临床上常见在从后退接触位向前伸的运动中下颌会有一定的左右偏斜,但正常情况下这种偏斜幅度小于0.5mm,我们将正常人这种从RCP到ICP的前后向及左右向的运动范围称为正中自由域。
)
解析:
3.RCP
(分数:4.00)
______________________________________________ ____________________________________________ 正确答案:(
RCP:正常情况下是一个张力性边缘位置,位于ICP的后下方,水平向距离约为0.5-1.5mm,垂直向约为1- 1.5mm,距离的大小和方向与后牙的牙尖高度有关。
) 解析:
4. 下颌姿势位
(分数:4.00)
______________________________________________ ____________________________________________ 正确答案:(
下颌姿势位:是指端坐或直立,且不吞咽、不说话、不咀嚼时,下颌所处的位置。
)
解析:
5. 牙合音
(分数:4.00)
______________________________________________ ____________________________________________ 正确答案:(牙合音:是受测者在空口状态下循习惯开闭口位叩齿时发出的牙合接触音。
)
解析:
6. 开口绞锁
(分数:4.00)
______________________________________________ ____________________________________________ 正确答案:(开口绞锁:开口后有阻碍,不能闭口,也称为特发性脱位。
)
解析:
7. 伤害性反射
(分数:4.00)
______________________________________________ ____________________________________________ 正确答案:(伤害性反射:咀嚼系统受到伤害性刺激,下颌都会反射性张开,这属于一种自身保护性反射,又称开颌反射。
)
解析:。