局部解刨学PPT课件：结肠上区
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2. Mixes food with gastric secretions to form a chyme;
3. Controls rate of delivery of chyme to small intestine so that efficient digestion and absorption can take place ( about 3 ml of chyme enters duodenum at a time).
Stomach is relatively fixed at both ends but is very mobile in between.
2. Relation Its anterior surface is behind left lobe of liver, diaphragm and anterior abdominal wall (bare area of stomach). Its posterior surface is separated by omental bursa from following structures → diaphragm, spleen, pancreas, left kidney, left suprarenal gland, transverse colon and its mesocolon. They are called “stomach bed”.
II.胃 Stomach
Stomach is dilated portion of alimentary canal and has three main functions:
1. Stores food (holds from 1.5~4 liters). Meal is emptied from stomach about 4 hours.
Esophagus is a muscular tube about 25 cm long. It enters abdominal cavity through esophageal hiatus in diaphragm. After a course of about 1.25cm, it enters stomach on its right side.
Esophagus is related anteriorly to posterior surface of left lobe of live. Left and right vagi lie on its anterior and posterior surfaces, respectively.
It contains some organs, for example, Abdominal portion of Espophagus, Stomach, Duodenum, Liver, Extrahepatic bile ducts, Pancreas, and Spleen.
I.食管腹部 Abdominal Portion of Espophagus
mawk.baidu.comn part of stomach;
④ Pyloric region → Distal
portion and funnel like area
Cardiac part
Fundus
narrows to pylorus which is
Pyloric part
surrounded by pyloric
局部解剖学
Topographical Anatomy
Section 5 结肠上区 Supracolic Compartment
Supracolic compartments lies between diaphragm and transverse colon and its mesocolon.
Body
sphincter → regulates chyme
into Small Intestine.
Pyloric canal
Pyloric antrum
II) Position and Relation
1. Position Mainly parts of stomach is situated in left hypochondriac region, small in epigastric region; Cardia is situated to left of T11, pylorus lies to right of L1.
Stomach
I) Divisions
Stomach is J – shaped and divided into four portions:①
Cardiac region → Junction with esophagus immediately
inside cardiac orifice; ② Fundus → dome shaped portion under diaphragm; ③ Body → midportion, greatest and
Abdominal portion of esophagus is supplied by branches from left gastric artery; Its veins drain into left gastric vein, a tributary of hepatic portal vein; It is innervated by anterior and posterior gastric nerves (vagi).
Upper and left part of stomach is in contact with gastric surface of spleen.
III) Structures of stomach wall
It consists of four usual layers → Mucosa, Submucosa, Muscular layer and Serous.
3. Controls rate of delivery of chyme to small intestine so that efficient digestion and absorption can take place ( about 3 ml of chyme enters duodenum at a time).
Stomach is relatively fixed at both ends but is very mobile in between.
2. Relation Its anterior surface is behind left lobe of liver, diaphragm and anterior abdominal wall (bare area of stomach). Its posterior surface is separated by omental bursa from following structures → diaphragm, spleen, pancreas, left kidney, left suprarenal gland, transverse colon and its mesocolon. They are called “stomach bed”.
II.胃 Stomach
Stomach is dilated portion of alimentary canal and has three main functions:
1. Stores food (holds from 1.5~4 liters). Meal is emptied from stomach about 4 hours.
Esophagus is a muscular tube about 25 cm long. It enters abdominal cavity through esophageal hiatus in diaphragm. After a course of about 1.25cm, it enters stomach on its right side.
Esophagus is related anteriorly to posterior surface of left lobe of live. Left and right vagi lie on its anterior and posterior surfaces, respectively.
It contains some organs, for example, Abdominal portion of Espophagus, Stomach, Duodenum, Liver, Extrahepatic bile ducts, Pancreas, and Spleen.
I.食管腹部 Abdominal Portion of Espophagus
mawk.baidu.comn part of stomach;
④ Pyloric region → Distal
portion and funnel like area
Cardiac part
Fundus
narrows to pylorus which is
Pyloric part
surrounded by pyloric
局部解剖学
Topographical Anatomy
Section 5 结肠上区 Supracolic Compartment
Supracolic compartments lies between diaphragm and transverse colon and its mesocolon.
Body
sphincter → regulates chyme
into Small Intestine.
Pyloric canal
Pyloric antrum
II) Position and Relation
1. Position Mainly parts of stomach is situated in left hypochondriac region, small in epigastric region; Cardia is situated to left of T11, pylorus lies to right of L1.
Stomach
I) Divisions
Stomach is J – shaped and divided into four portions:①
Cardiac region → Junction with esophagus immediately
inside cardiac orifice; ② Fundus → dome shaped portion under diaphragm; ③ Body → midportion, greatest and
Abdominal portion of esophagus is supplied by branches from left gastric artery; Its veins drain into left gastric vein, a tributary of hepatic portal vein; It is innervated by anterior and posterior gastric nerves (vagi).
Upper and left part of stomach is in contact with gastric surface of spleen.
III) Structures of stomach wall
It consists of four usual layers → Mucosa, Submucosa, Muscular layer and Serous.