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

The tube that connects the oral cavity to the stomach is called the ________.

pharynx

duodenum

esophagus

trachea

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Verified step by step guidance

Step 1: Begin by identifying the anatomical structure described in the problem. The tube connecting the oral cavity to the stomach is part of the digestive system.

Step 2: Review the function of each option provided: - Pharynx: A muscular structure that connects the nasal and oral cavities to the larynx and esophagus, primarily involved in swallowing and respiration. - Duodenum: The first part of the small intestine, involved in digestion and absorption, not a connecting tube. - Esophagus: A muscular tube that transports food from the oral cavity to the stomach via peristalsis. - Trachea: A tube that connects the larynx to the lungs, part of the respiratory system.

Step 3: Eliminate options that do not match the description of a tube connecting the oral cavity to the stomach. The duodenum and trachea are not part of this pathway.

Step 4: Focus on the esophagus, which is the correct anatomical structure that fits the description. It is specifically designed to transport food and liquids from the oral cavity to the stomach.

Step 5: Confirm your understanding by recalling that the esophagus is located posterior to the trachea and uses peristaltic movements to push food toward the stomach.