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

What structure prevents food and liquids from entering the trachea during swallowing?

Larynx

Esophagus

Pharynx

Epiglottis

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Verified step by step guidance

Understand the anatomy of the throat: The throat is composed of several structures including the larynx, esophagus, pharynx, and epiglottis, each with specific functions.

Identify the function of the epiglottis: The epiglottis is a flap of tissue located at the entrance of the larynx. Its primary role is to act as a switch between the trachea and the esophagus.

Learn the swallowing process: During swallowing, the epiglottis folds down to cover the trachea, preventing food and liquids from entering the airway and directing them towards the esophagus.

Differentiate between the structures: The larynx is involved in voice production, the esophagus is the tube that carries food to the stomach, and the pharynx is a muscular tube that serves as a pathway for both air and food.

Conclude the function of the epiglottis: Recognize that the epiglottis is the structure that prevents food and liquids from entering the trachea during swallowing, ensuring that the airway remains clear.