Digestive system-A Questions plus Answers
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1. Digestive system starts from**: oral cavity
2. After oral cavity: pharynx
3. after pharynx: esophagus
4. Esophagus is located in: thoracic cavity
5. Then the esophagus enters into: abdominal cavity through the diaphragm muscle which is
connected to the stomach
6. The stomach is located in the: left upper quadrant abdominal cavity
7. After stomach, GI tract continues with the: duodenum
8. Duodenum is the: 1st part of small intestine
9. after duodenum: jejunum
10.after jejunum: ileum
11.ileum: the last part of the small intestine
12.Ileum is connected to: cecum (first part of large intestine)
13.Cecum is: first part of the large intestine
14.appendix: blind pouch hanging from the cecum
15.The the cecum continues with: ascending colon
16.after ascending colon: transverse colon then descending colon
17.after descending colon: sigmoid colon, rectum, then anus
18.The embryonic origin of GI tract is from: endoderm
19. The wall of the entire GI tract, from esophagus to anus, is formed of: smooth muscle
20.smooth muscle controls the: peristalsis motility of GI
21.Peristalsis: the involuntary constriction and relaxation of the muscles of the intestine or
another canal, creating wavelike movements that push the contents of the canal forward.
22.For example, in the wall of the stomach we have 3 types of smooth muscle:: oblique,
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, Digestive system-A Questions plus Answers
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longitudinal, and circular
23.But in wall of small and large intestine we have 2 types of smooth muscle:-
: longitudinal and circular
24.DONT FROGET In stomach we have: 3 types of smooth muscle (oblique, longitudinal,
and circular)
25.BUT in large and small intestines we have: 2 types of smooth muscle (longi- tudinal and
circular)
26.The histology of the structure of GI tract from external to internal:: Serosa, Muscle (Longitudinal
Muscle, Circular Muscle), Submucosa, Mucosa
27.External peritoneal covering layer: serosa
28.serosa (adventitia) layer is: connective tissue, which protects the GI tract from external
factors
29.After serosa, going inward, is: the muscle layer
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St
1. Digestive system starts from**: oral cavity
2. After oral cavity: pharynx
3. after pharynx: esophagus
4. Esophagus is located in: thoracic cavity
5. Then the esophagus enters into: abdominal cavity through the diaphragm muscle which is
connected to the stomach
6. The stomach is located in the: left upper quadrant abdominal cavity
7. After stomach, GI tract continues with the: duodenum
8. Duodenum is the: 1st part of small intestine
9. after duodenum: jejunum
10.after jejunum: ileum
11.ileum: the last part of the small intestine
12.Ileum is connected to: cecum (first part of large intestine)
13.Cecum is: first part of the large intestine
14.appendix: blind pouch hanging from the cecum
15.The the cecum continues with: ascending colon
16.after ascending colon: transverse colon then descending colon
17.after descending colon: sigmoid colon, rectum, then anus
18.The embryonic origin of GI tract is from: endoderm
19. The wall of the entire GI tract, from esophagus to anus, is formed of: smooth muscle
20.smooth muscle controls the: peristalsis motility of GI
21.Peristalsis: the involuntary constriction and relaxation of the muscles of the intestine or
another canal, creating wavelike movements that push the contents of the canal forward.
22.For example, in the wall of the stomach we have 3 types of smooth muscle:: oblique,
1/
8
, Digestive system-A Questions plus Answers
St
longitudinal, and circular
23.But in wall of small and large intestine we have 2 types of smooth muscle:-
: longitudinal and circular
24.DONT FROGET In stomach we have: 3 types of smooth muscle (oblique, longitudinal,
and circular)
25.BUT in large and small intestines we have: 2 types of smooth muscle (longi- tudinal and
circular)
26.The histology of the structure of GI tract from external to internal:: Serosa, Muscle (Longitudinal
Muscle, Circular Muscle), Submucosa, Mucosa
27.External peritoneal covering layer: serosa
28.serosa (adventitia) layer is: connective tissue, which protects the GI tract from external
factors
29.After serosa, going inward, is: the muscle layer
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