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

Parasympathetic Nervous System

Anatomy & Physiology

14. The Autonomic Nervous System

Parasympathetic Nervous System

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Multiple Choice

In the parasympathetic nervous system, preganglionic fibers are and postganglionic fibers are __.

Short; long.

Short; short.

Long; short.

Long; long.

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Verified step by step guidance

Understand the structure of the autonomic nervous system, which includes the sympathetic and parasympathetic nervous systems. The parasympathetic nervous system is responsible for 'rest and digest' activities.

Recognize that the autonomic nervous system consists of two types of neurons: preganglionic and postganglionic fibers. Preganglionic fibers originate in the central nervous system and synapse with postganglionic neurons outside the CNS.

In the parasympathetic nervous system, preganglionic fibers are typically longer because they extend from the CNS to ganglia located near or within the target organs.

Postganglionic fibers in the parasympathetic nervous system are shorter because they connect the ganglia to the target organs, which are nearby.

Compare this arrangement to the sympathetic nervous system, where preganglionic fibers are shorter and postganglionic fibers are longer, as sympathetic ganglia are located closer to the spinal cord.