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

Small Intestine

Anatomy & Physiology

23. The Digestive System

Small Intestine

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Problem 14e

Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
e. During feeding, the small intestine exhibits motion in the migrating motor complex pattern.

Verified step by step guidance

Understand the function of the small intestine during feeding. The small intestine primarily uses segmentation and peristalsis to mix and propel food, rather than the migrating motor complex (MMC).

Recall that the migrating motor complex (MMC) is a pattern of motility that occurs in the fasting state, not during feeding. It helps clear undigested material and bacteria from the small intestine.

Identify the error in the statement: The statement incorrectly associates the migrating motor complex (MMC) with feeding, which is false.

Correct the statement: During feeding, the small intestine exhibits motion in the segmentation and peristalsis patterns, not the migrating motor complex pattern.

Review the corrected statement to ensure it accurately reflects the physiological processes of the small intestine during feeding.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Migrating Motor Complex (MMC)

The Migrating Motor Complex is a pattern of electromechanical activity observed in the gastrointestinal tract during fasting. It consists of a series of contractions that occur in the stomach and small intestine, helping to clear out residual food and secretions. The MMC is crucial for maintaining gut health and preventing bacterial overgrowth, but it is not primarily active during feeding.

Small Intestine Motility

Small intestine motility refers to the coordinated contractions of the smooth muscle in the small intestine that facilitate the movement of food and digestive contents. During feeding, the small intestine exhibits different motility patterns, such as segmentation and peristalsis, which are essential for mixing and propelling food rather than the MMC pattern, which is more prominent during fasting.

Feeding Physiology

Feeding physiology encompasses the processes and mechanisms involved in digestion and nutrient absorption after food intake. It includes the roles of various hormones, enzymes, and motility patterns that work together to optimize digestion. Understanding feeding physiology is essential for recognizing how the body responds to food and the importance of different motility patterns during and after meals.