_pairs of cranial nerves and _pairs of spinal nerves constitute the peripheral nervous system in humans
Correct answer: E. 12...31
- A. 6...12
- B. 12...24
- C. 24...12
- D. 31...12
- E. 12...31
Explanation
Nerves emerging from the brain are called cranial nerves. Nerves emerging from the spinal cord are called spinal nerves. The cranial nerves are a set of 12 paired nerves that arise directly from the brain. They can be sensory, motor, or mixed. On the other hand, there are 31 pairs of spinal cords. They are all mixed nerves.
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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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