Stomach Flashcards

Stomach Flashcards topic image

Learn the stomach's structure, layers, and digestive role with flashcards.

Card 1 of 30Question

What is the main function of the stomach?

Mechanical and chemical digestion of food.

In This Section

1. What is the main function of the stomach?

Mechanical and chemical digestion of food.

2. Where is the stomach located?

Upper left quadrant of the abdomen.

3. What is the entry point of the stomach called?

Cardiac orifice

4. What is the exit of the stomach into the small intestine called?

Pyloric orifice

5. What sphincter controls the opening into the stomach?

Lower esophageal sphincter

6. What sphincter controls the release of stomach contents into the duodenum?

Pyloric sphincter

7. Name the four regions of the stomach.

Cardia, fundus, body, pylorus.

8. What is the large upper dome of the stomach called?

Fundus

9. What is the main central region of the stomach called?

Body

10. What is the narrow bottom region of the stomach called?

Pylorus

11. What is the mucosal fold inside the stomach called?

Rugae

12. What is the name of the innermost layer of the stomach wall?

Mucosa

13. What is the middle muscular layer of the stomach wall?

Muscularis externa

14. What is the outermost layer of the stomach wall?

Serosa

15. What cells secrete hydrochloric acid in the stomach?

Parietal cells

16. What cells secrete pepsinogen in the stomach?

Chief cells

17. What hormone stimulates acid secretion in the stomach?

Gastrin

18. What is chyme?

Semi-liquid food mixture in the stomach.

19. What artery supplies the lesser curvature of the stomach?

Left gastric artery

20. What arteries supply the greater curvature of the stomach?

Right and left gastroepiploic arteries

21. What is the role of mucus in the stomach?

Protects the stomach lining from acid and enzymes.

22. How many muscle layers are in the stomach wall?

Three

23. Name the muscle layers of the stomach from inside out.

Oblique, circular, longitudinal.

24. What is the nerve supply to the stomach?

Vagus nerve and sympathetic fibers

25. Where does most protein digestion begin?

In the stomach.

26. What enzyme starts protein digestion in the stomach?

Pepsin

27. What stimulates the secretion of gastrin?

Presence of food in the stomach.

28. What forms the gastric juice?

Hydrochloric acid, pepsinogen, mucus.

29. What structure connects the stomach to the esophagus?

Gastroesophageal junction

30. What part of the small intestine receives stomach contents?

Duodenum