The number of human spinal nerves is
Correct answer: B. 62
- A. 60
- B. 62
- C. 64
- D. 66
Explanation
The human spinal cord gives rise to 31 pairs of spinal nerves, each pair emerging from a specific segment of the spinal cord. Thus, the total number of individual spinal nerves is 62 (31 pairs of 2 nerves each). Option B is correct because it accurately reflects this count. Options A, C, and D are incorrect as they do not match the actual number of spinal nerves in the human body.
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Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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