Stomach

STOMACH

Q. 1

Cardiac orifice of stomach is located at level of which vertebra:

 A

T 9

 B

T 10

 C

T 11

 D

L 1

Q. 1

Cardiac orifice of stomach is located at level of which vertebra:

 A

T 9

 B

T 10

 C

T 11

 D

L 1

Ans. C

Explanation:

The opening from the oesophagus into the stomach is the cardiac orifice. It is typically situated to the left of the midline behind the seventh costal cartilage at the level of the eleventh thoracic vertebra.


Q. 2

Chief cells are most abundant in which part of the stomach?

 A

Fundus

 B

Body

 C

Antrum

 D

Pylorus

Q. 2

Chief cells are most abundant in which part of the stomach?

 A

Fundus

 B

Body

 C

Antrum

 D

Pylorus

Ans. A

Explanation:

Chief cells are more abundant in the fundus of the stomach. Cardiac portion of stomach is rich in mucus secreting glands and have few parietal or chief cells. Body of stomach is rich in parietal and mucous cells and pyloric part of stomach is rich in enteroendocrine cells.

Ref: Modern Nutrition In Health and Disease By Maurice Edward Shils, 10th Edition, Page 1117


Q. 3

Which type of cells are NOT found in stomach?

 A

Chief cells

 B

Parietal cells

 C

Enterochromaffin cells

 D

Goblet cells

Q. 3

Which type of cells are NOT found in stomach?

 A

Chief cells

 B

Parietal cells

 C

Enterochromaffin cells

 D

Goblet cells

Ans. D

Explanation:

Goblet cells are interspersed between the absorptive cells. They are less abundant in the duodenum and more numerous in the ileum. These cells produce glycoprotein mucins that are hydrated and cross-linked to form mucus, whose main function is to protect and lubricate the lining of the intestine.

 
The cells of the gastric glands are parietal (oxyntic) cells, chief (zymogenic) cells, mucous cells, enterochromaffin cells secreting a variety of hormones mainly serotonin.

Q. 4

Which of the following type of cells are NOT found in stomach?

 A

Chief cells

 B

Parietal cells

 C

Argentaffin cells

 D

Goblet cells

Q. 4

Which of the following type of cells are NOT found in stomach?

 A

Chief cells

 B

Parietal cells

 C

Argentaffin cells

 D

Goblet cells

Ans. D

Explanation:

Cardia and pyloric region of the stomach consist of glands which secretes mucus and body of the stomach including the fundus consist of parietal cells and chief cells.  Goblet cells are found in the epithelium lining the small intestine.
  • The parietal cell secretes hydrochloric acid and are located the middle and basilar portion of the gastric glands.
  • Chief cells or zymogen cells are found near the base of the gastric glands. They synthesize and secrete pepsinogen.
  • Enteroendocrine (argentaffin) cells secrete different neuropeptides and regulatory molecules. Gastrin producing G cells are found in the antrum, enterochromaffin cells secreting serotonin, substance P or motilin are found throughout the gastric mucosa, glucagon secreting A cells are found in the proximal third of the stomach and somatostatin secreting D cells are found in the upper third of stomach and antrum.

Q. 5

All of the following statements are correct about stomach, EXCEPT:

 A

Pylorus has more acid secreting cells

 B

A high number of goblet cells are present in mucous lining

 C

Chief cells secrete pepsinogen

 D

Parietal cells secrete intrinsic factor

Q. 5

All of the following statements are correct about stomach, EXCEPT:

 A

Pylorus has more acid secreting cells

 B

A high number of goblet cells are present in mucous lining

 C

Chief cells secrete pepsinogen

 D

Parietal cells secrete intrinsic factor

Ans. A

Explanation:

In the cardiac and pyloric regions, these are called the cardiac and pyloric glands, respectively, secrete mucus only.Parietal cells secrete hydrochloric acid and intrinsic factor; chief cells secrete rennin and lipase in infancy and pepsinogen throughout life; and enteroendocrine cells secrete hormones and paracrine messengers that regulate digestion.


Q. 6

A posteriorly perforating ulcer in the pyloric antrum of the stomach is likely to produce initial localized peritonitis or abscess formation in the:

 A

Greater sac

 B

Left subhepatic and hepatorenal spaces (pouch of Morrison)

 C

Omental bursa

 D

Right subphrenic space

Q. 6

A posteriorly perforating ulcer in the pyloric antrum of the stomach is likely to produce initial localized peritonitis or abscess formation in the:

 A

Greater sac

 B

Left subhepatic and hepatorenal spaces (pouch of Morrison)

 C

Omental bursa

 D

Right subphrenic space

Ans. C

Explanation:

C i.e. Omental Bursa


Q. 7

Blood supply of stomach is/are:

 A

Left gastric artery

 B

Short gastric artery

 C

Lt gastroepiploic artery

 D

All

Q. 7

Blood supply of stomach is/are:

 A

Left gastric artery

 B

Short gastric artery

 C

Lt gastroepiploic artery

 D

All

Ans. D

Explanation:

A. i.e. Left gastric artery; B. i.e. Short gastric artery; C. i.e. Left gastroepiploic artery


Q. 8

All of them develop in the mesentery of stomach except

 A

Liver

 B

Spleen

 C

Kidney

 D

Pancreas

Q. 8

All of them develop in the mesentery of stomach except

 A

Liver

 B

Spleen

 C

Kidney

 D

Pancreas

Ans. C

Explanation:

C i.e. Kidney 


Q. 9

Chief cells of stomach are most abundant in

 A

Fundus

 B

Body

 C

Antrum

 D

A and B both

Q. 9

Chief cells of stomach are most abundant in

 A

Fundus

 B

Body

 C

Antrum

 D

A and B both

Ans. D

Explanation:

A > B i.e. Fundus > Body


Q. 10

Most important blood supply to stomach:

 A

Left gastric artery

 B

Short gastric artery

 C

Right gastro epiploic artery

 D

Left gastro epiploic artery

Q. 10

Most important blood supply to stomach:

 A

Left gastric artery

 B

Short gastric artery

 C

Right gastro epiploic artery

 D

Left gastro epiploic artery

Ans. A

Explanation:

Ans. a. Left gastric artery

Most important blood supply to stomach is left gastric artery.

‘The left gastric artery is the branch of celiac axis and is the largest artery supplying the stomach. ‘- Surgery.. Basic Science and Clinical Evidence, by Jeffrey A. Norton/489

Stomach has rich blood supply arising from celiac trunk and its branches in the form of right and left gastric, right and left gastroepiploic and short gastric arteries.

‘In the lesser omentum, locate the blood vessels which parallel the lesser curvature of the stomach. The largest vessel is found near the esophagus and is the left gastric artery. The left gastric artery arises from the celiac trunk and follows the dorsal body wall to reach the upper end of the lesser curvature of the stomach to enter the lesser omentum.’- http://www.slu. edu/…/Dissection%2025%20-%20 Stomach%20 and%20 Intestine

‘The arterial supply to the stomach comes predominantly from the coeliac axis although intramural anastomoses exist with vessels of other origins at the two ends of the stomach. The left gastric artery arises directly from the coeliac axis.’

Blood Supply of Stomach

  • Stomach has rich blood supply arising from celiac trunk and its branches in the form of right and left gastric, right and left gastroepiploic and short gastric arteries.

Blood Supply of Stomach:

  • Left gastric arteryQ : Branch of celiac trunk (Largest)
  • Right gastric arteryQ: Branch of hepatic artery
  • Right gastroepiploic arteryQ: Branch of gastroduodenal artery
  • Left gastroepiploic arteryQ: Branch of splenic artery
  • Short gastric arteriesQ: Branch of splenic artery

Q. 11

Stomach is derived from ?

 A

Foregut

 B

Midgut

 C

Hindgut

 D

Allantois

Q. 11

Stomach is derived from ?

 A

Foregut

 B

Midgut

 C

Hindgut

 D

Allantois

Ans. A

Explanation:

 Foregut


Q. 12

Stomach bed is formed by all except ‑

 A

Pancreas

 B

Right kidney

 C

Splenic artery

 D

Diaphragm

Q. 12

Stomach bed is formed by all except ‑

 A

Pancreas

 B

Right kidney

 C

Splenic artery

 D

Diaphragm

Ans. B

Explanation:

The posterior surface of stomach is related to structures forming the stomach bed, all of which are separated from stomach by the cavity of the lesser sac. These structures forming stomach bed are :-

  1. Diaphragm, 
  2. Pancreas (body)
  3. Splenic artery
  4. Left kidney 
  5. Transverse colon
  6. Left suprarenal (adrenal) gland 
  7. Splenic flexure of colon
  • Sometimes spleen is also included in stomach bed, but it is separated from stomach by greater sac (not lesser sac).

Q. 13

Stomach is supplied by ‑

 A

Coeliac trunk

 B

Splenic artery

 C

Gastroduodenal artery

 D

All of the above

Q. 13

Stomach is supplied by ‑

 A

Coeliac trunk

 B

Splenic artery

 C

Gastroduodenal artery

 D

All of the above

Ans. D

Explanation:

Ans. is ‘d’ i.e., All of the above



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