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

Erection of the penis results from which of the following nervous system activities?

Parasympathetic stimulation

Somatic motor stimulation

Sympathetic stimulation

Inhibition of the enteric nervous system

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Verified step by step guidance

Understand the role of the autonomic nervous system in regulating physiological functions. The autonomic nervous system is divided into the sympathetic and parasympathetic divisions, each responsible for different activities in the body.

Recall that the parasympathetic nervous system is primarily involved in 'rest and digest' activities, including processes that promote relaxation and increased blood flow to certain areas of the body.

Recognize that an erection is caused by increased blood flow to the penile tissue, which is facilitated by the relaxation of smooth muscle in the blood vessels. This process is mediated by parasympathetic stimulation.

Differentiate the roles of the other options: Sympathetic stimulation is typically associated with 'fight or flight' responses, somatic motor stimulation controls voluntary muscle movements, and the enteric nervous system regulates gastrointestinal functions.

Conclude that parasympathetic stimulation is the correct answer because it promotes vasodilation and increased blood flow to the penis, leading to an erection.