腹部解剖图谱

Inguinal region 腹股沟区
Boundaries Inguinal ligament Lateral margin of
rectus abdominis A horizontal line
stretching from anterior iliac spine to laeral margin of rectus abdominis
Cremaster 提睾肌: around the spermatic cord and testis
Rectus abdominis 腹直肌
Position: lie on to either of midline
Origin: pubic crest and symphysis
Insertion: xiphoid and 5th-7th costal cartilages
Obliquus internus abdominis 腹内斜肌
Deep to obliquus externus abdominis
General direction of fibres: upwards, forwards and medially
Transversels abdominis 腹横肌
Structures Inguinal ligament
腹股沟韧带 Lacunar ligament
腔隙韧带 Superficial inguinal ring
腹股沟浅环 －triangularshaped defect in aponeurosis of obliquus externus abdominis above pubic tubercle
Posterior group
Quadiatus lumborum 腰
方肌
Psoas major 腰大肌
Obliquus externus absominis 腹外斜肌
General direction of fibers: downward, forward and medially (run down and inward)
Descent of testes
Seven-week embryo showing the testis before its descent from the dorsal abdominal wall
Abdominal wall
山东大学医学院 解剖教研室 李振华
Anterior wall
Layers ( from superficial to deep)
Skin
Superficial fascia
Anterolateral muscles
Transversalis fascia
腹
横筋膜
Muscles of abdomen
Anterolateral group Obliquus externus
absominis 腹外斜肌 Oblequus enternus
abdominis腹内斜肌 Transversus
abdominis腹横肌 Rectus abdominis 腹
直肌
Deep to obliquus internus
Inguinal falx 腹股沟镰: arch over spermatic cord, inserted with transverses abdominis fiber into medial part of pecten of pubis
Sheath of rectus abdominis 腹直肌鞘
Ant layer－formed by fusion of aponeurosis of obliquus externus abdominis and anterior leaf of aponeurosis of obliquus internus abdominis
efforts-vomiting, coughing, sneezing, defecation, urination and childbirth. Depress ribs, assist in (the act of force(4)expiration. Flex, lateral flex, and rotate vertebral column
Below this line rectus abdominis in contact with transverse fascia
Linea alba 白线 －tendinous raphe between right and left recti from xiphoid to pubic symphysis.
Has 3-4 tendinous intersections 腱划
linea semiluaris 半月线
Similar functions for above four pairs of muscles
Support and compress the abdominal viscera Increase intra-abdominal pressure, aid in expulsive
Extraperitoneal fascia 腹膜下筋膜
Parietal peritoneum 壁腹膜
Superficial fascia－ divisions below umbilicus
S来自百度文库perficial fatty layer (Camper’s)
Membranous layer (Scarpa’s)
Post layer
Formed by fusion of posterion leaf of aponeurosis of obliquus internus abdominis and aponeurosis of transverses abdominis
Absent in about 4-5cm below the umbilicus, where aponeuroses of all three muscles form anterior layer the lower free border named arcuate line