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 correctly lists the main structural components of the digestive tract in order from mouth to anus?

Mouth, stomach, esophagus, small intestine, large intestine, anus

Mouth, pharynx, trachea, stomach, large intestine, anus

Mouth, esophagus, stomach, large intestine, small intestine, anus

Mouth, esophagus, stomach, small intestine, large intestine, anus

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Verified step by step guidance

Step 1: Begin by understanding the anatomy of the digestive tract, which is a continuous tube that processes food from ingestion to excretion. The digestive tract is also known as the alimentary canal.

Step 2: Identify the correct sequence of structures in the digestive tract. Food enters through the mouth, where mechanical and chemical digestion begins. The pharynx connects the mouth to the esophagus, but the trachea is part of the respiratory system and not the digestive tract.

Step 3: After the mouth, food moves into the esophagus, a muscular tube that transports food to the stomach. The stomach is responsible for further mechanical and chemical digestion.

Step 4: From the stomach, food passes into the small intestine, where most nutrient absorption occurs. The small intestine is divided into three parts: duodenum, jejunum, and ileum.

Step 5: Finally, food moves into the large intestine, where water absorption and formation of feces occur, before being expelled through the anus. The correct sequence is: Mouth, esophagus, stomach, small intestine, large intestine, anus.