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 Heart2h 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

The Stomach

Anatomy & Physiology

23. The Digestive System

The Stomach

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Multiple Choice

The only stomach function that is essential to life is __________.

the presence of HCl

the secretion of intrinsic factor

mechanical digestion

the secretion of pepsinogen

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Understand the role of the stomach in the digestive system, which includes mechanical digestion, chemical digestion, and secretion of various substances.

Identify the substances secreted by the stomach: hydrochloric acid (HCl), pepsinogen, and intrinsic factor.

Recognize that hydrochloric acid (HCl) helps in creating an acidic environment for enzymes to function and in breaking down food, but is not essential for life.

Understand that pepsinogen is an inactive enzyme that is converted to pepsin in the presence of HCl, aiding in protein digestion, but is not essential for life.

Learn that intrinsic factor is crucial for the absorption of vitamin B12 in the small intestine, which is essential for red blood cell production and neurological function, making it the only stomach function essential to life.

5:42m

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Which of the following products does the stomach produce?

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