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

Visceral Reflex Arcs

Anatomy & Physiology

14. The Autonomic Nervous System

Visceral Reflex Arcs

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Multiple Choice

Which of the following is a characteristic of a visceral reflex?

Controls skeletal muscle contraction

Lacks integration in the central nervous system

Always involves conscious perception

Involves autonomic motor neurons

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Verified step by step guidance

Understand the concept of visceral reflexes: Visceral reflexes are involuntary responses that regulate the function of internal organs. They are part of the autonomic nervous system, which controls processes like heart rate, digestion, and respiratory rate.

Identify the key components of a visceral reflex: These reflexes typically involve sensory neurons, interneurons (for integration in the central nervous system), and autonomic motor neurons that control smooth muscle, cardiac muscle, or glands.

Eliminate incorrect options: Visceral reflexes do not control skeletal muscle contraction, as skeletal muscles are controlled by the somatic nervous system. They also involve integration in the central nervous system, so the option 'lacks integration in the central nervous system' is incorrect. Additionally, visceral reflexes are involuntary and do not require conscious perception, making 'always involves conscious perception' incorrect.

Focus on the correct characteristic: Visceral reflexes involve autonomic motor neurons, which are responsible for transmitting signals to the effectors (smooth muscle, cardiac muscle, or glands) to carry out the reflex action.

Summarize the reasoning: Based on the definition and components of visceral reflexes, the correct answer is 'Involves autonomic motor neurons,' as this is a defining feature of these reflexes.