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 correctly identifies the sequence of components in a typical spinal reflex arc?

Receptor → Sensory neuron → Integration center → Motor neuron → Effector

Effector → Motor neuron → Integration center → Sensory neuron → Receptor

Integration center → Sensory neuron → Receptor → Motor neuron → Effector

Sensory neuron → Receptor → Integration center → Effector → Motor neuron

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Verified step by step guidance

Step 1: Understand the concept of a spinal reflex arc. A spinal reflex arc is a neural pathway that controls reflex actions. It involves a sequence of components that work together to produce a rapid, involuntary response to a stimulus.

Step 2: Identify the components of the spinal reflex arc. These include: (1) Receptor, which detects the stimulus; (2) Sensory neuron, which transmits the signal to the central nervous system; (3) Integration center, typically located in the spinal cord, where the signal is processed; (4) Motor neuron, which carries the response signal to the effector; and (5) Effector, which performs the response action.

Step 3: Analyze the sequence provided in the problem. Compare each option to the correct order of components in a spinal reflex arc: Receptor → Sensory neuron → Integration center → Motor neuron → Effector.

Step 4: Eliminate incorrect options by checking the logical flow of the reflex arc. For example, the effector cannot precede the motor neuron, as the motor neuron is responsible for transmitting the signal to the effector.

Step 5: Select the option that matches the correct sequence of components in the spinal reflex arc: Receptor → Sensory neuron → Integration center → Motor neuron → Effector.