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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

Organization of Sensory Pathways

Anatomy & Physiology

13. The Peripheral Nervous System

Organization of Sensory Pathways

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Multiple Choice

Which of the following regions of the body has the largest area of sensory cortex devoted to it?

Back

Fingers

Thigh

Elbow

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Verified step by step guidance

Understand that the sensory cortex is part of the brain responsible for processing sensory information from different parts of the body.

Recognize that the amount of sensory cortex devoted to a body region is proportional to the sensitivity and the density of sensory receptors in that region.

Consider the body regions listed: back, fingers, thigh, and elbow. Think about which of these areas have the highest density of sensory receptors.

Recall that the fingers have a high density of sensory receptors, allowing for fine tactile discrimination and sensitivity.

Conclude that the fingers have the largest area of sensory cortex devoted to them due to their high sensitivity and receptor density compared to the other regions listed.