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 component of a visceral reflex arc?

Skeletal muscle fiber

Somatic motor neuron

Cerebral cortex

Sensory receptor

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Verified step by step guidance

Step 1: Understand the concept of a visceral reflex arc. A visceral reflex arc is an involuntary response that involves the autonomic nervous system and regulates internal organ functions such as heart rate, digestion, and blood pressure.

Step 2: Identify the components of a visceral reflex arc. These typically include: a sensory receptor, a sensory neuron, an integration center (often in the spinal cord or brainstem), a motor neuron (autonomic), and an effector (smooth muscle, cardiac muscle, or glands).

Step 3: Compare the options provided in the question to the components of a visceral reflex arc. Skeletal muscle fibers and somatic motor neurons are part of the somatic nervous system, not the autonomic nervous system. The cerebral cortex is involved in higher-level processing and voluntary control, not reflex arcs.

Step 4: Recognize that the sensory receptor is the correct answer because it is the structure that detects changes in the internal environment and initiates the reflex arc by sending signals to the sensory neuron.

Step 5: Conclude that the sensory receptor is a key component of the visceral reflex arc, as it is responsible for detecting stimuli and triggering the reflex response.