The number of spinal nerves along the spinal cord is:
Correct answer: C. 31 pairs
- A. 16 pairs
- B. 20 pairs
- C. 31 pairs
- D. 33 pairs
Explanation
There are 31 pairs of spinal nerves in the human body. These nerves emerge from the spinal cord and pass through openings between adjacent vertebrae, distributing to various regions of the body.
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About Coordination and Control
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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