Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

23. The Digestive System

Introduction to the Digestive System

Anatomy & Physiology

23. The Digestive System

Introduction to the Digestive System

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Multiple Choice

Which of the following inhibits the secretion of the gastric glands?

Histamine

Secretin

Gastrin

Pepsin

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Verified step by step guidance

Understand the role of gastric glands: Gastric glands are responsible for secreting various substances, including hydrochloric acid and digestive enzymes, which aid in digestion.

Identify the function of each option: Histamine stimulates gastric acid secretion, Gastrin also stimulates gastric acid secretion, Pepsin is an enzyme that breaks down proteins, and Secretin is a hormone that inhibits gastric acid secretion.

Focus on Secretin: Secretin is released by the small intestine in response to acidic chyme entering from the stomach. Its primary role is to regulate the pH of the small intestine by inhibiting gastric acid secretion and stimulating bicarbonate production from the pancreas.

Eliminate incorrect options: Since Histamine and Gastrin both stimulate gastric acid secretion, and Pepsin is an enzyme rather than a hormone, they do not inhibit gastric gland secretion.

Conclude with the correct answer: Secretin is the hormone that inhibits the secretion of the gastric glands, making it the correct answer to the problem.