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

14. The Autonomic Nervous System

Introduction to the Autonomic Nervous System

Anatomy & Physiology

14. The Autonomic Nervous System

Introduction to the Autonomic Nervous System

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Multiple Choice

The main function of the sympathetic innervation on the lungs is ______.

to cause bronchodilation

to decrease respiratory rate

to constrict the bronchioles

to stimulate mucus secretion

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Verified step by step guidance

Step 1: Understand the role of the sympathetic nervous system in the body. The sympathetic nervous system is part of the autonomic nervous system and is responsible for the 'fight or flight' response, which prepares the body for action during stressful situations.

Step 2: Recall the effects of sympathetic activation on the lungs. During a 'fight or flight' response, the body needs increased oxygen delivery to tissues, which is achieved by bronchodilation (widening of the airways) to allow more air to flow into the lungs.

Step 3: Analyze the options provided in the question. Bronchodilation aligns with the sympathetic nervous system's role in increasing airflow, while the other options (decreasing respiratory rate, constricting bronchioles, and stimulating mucus secretion) are not consistent with the 'fight or flight' response.

Step 4: Eliminate incorrect answers. Decreasing respiratory rate and constricting bronchioles would reduce oxygen intake, which is counterproductive during stress. Stimulating mucus secretion is more associated with parasympathetic activity, not sympathetic.

Step 5: Conclude that the correct answer is 'to cause bronchodilation,' as this is the primary function of sympathetic innervation on the lungs during a stress response.