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

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of these cranial nerves contains preganglionic parasympathetic fibers?

Abducens nerve (CN VI)

Oculomotor nerve (CN III)

Optic nerve (CN II)

Trochlear nerve (CN IV)

Previous problemNext problem

Verified step by step guidance

Understand the role of the parasympathetic nervous system, which is part of the autonomic nervous system responsible for 'rest and digest' functions.

Recognize that preganglionic parasympathetic fibers are those that originate in the central nervous system and synapse in a peripheral ganglion.

Identify the cranial nerves that are associated with parasympathetic functions. These are typically the oculomotor nerve (CN III), facial nerve (CN VII), glossopharyngeal nerve (CN IX), and vagus nerve (CN X).

Evaluate each option: The abducens nerve (CN VI) is primarily involved in eye movement and does not carry parasympathetic fibers. The optic nerve (CN II) is involved in vision and also does not carry parasympathetic fibers. The trochlear nerve (CN IV) is involved in eye movement and does not carry parasympathetic fibers.

Conclude that the oculomotor nerve (CN III) is the correct answer as it contains preganglionic parasympathetic fibers that innervate the ciliary ganglion, which controls the pupil constriction and lens shape for focusing.