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

13. The Peripheral Nervous System

Introduction to Reflex Arcs

Anatomy & Physiology

13. The Peripheral Nervous System

Introduction to Reflex Arcs

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Multiple Choice

Which of the following is NOT a component of a reflex arc?

Motor neuron

Sensory receptor

Effector organ

Red blood cell

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Verified step by step guidance

Step 1: Begin by understanding the concept of a reflex arc. A reflex arc is the neural pathway that controls a reflex action. It typically involves five main components: sensory receptor, sensory neuron, integration center, motor neuron, and effector organ.

Step 2: Analyze each option provided in the question. The components listed (motor neuron, sensory receptor, effector organ) are all part of the reflex arc. A motor neuron transmits signals from the central nervous system to the effector organ, a sensory receptor detects stimuli, and the effector organ carries out the response.

Step 3: Consider the role of red blood cells in the body. Red blood cells are responsible for transporting oxygen and carbon dioxide in the bloodstream, but they are not involved in the neural pathway of a reflex arc.

Step 4: Compare the function of red blood cells to the components of a reflex arc. Since red blood cells do not play a role in detecting stimuli, transmitting signals, or responding to stimuli, they are not a component of a reflex arc.

Step 5: Conclude that the correct answer is red blood cell, as it is not part of the reflex arc, unlike the other options provided.