Central nervous system of man consists of______________?
Correct answer: C. Both of these
- A. Brain
- B. Spinal cord
- C. Both of these
- D. none of these
Explanation
The central nervous system consists of the brain and spinal cord, which together receive, process and coordinate nervous information. Students may choose the brain alone because it is the major control centre, but the spinal cord is also an essential component of the central nervous system.
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About Neurons and Nerve Impulse
Neurons receive and transmit information through dendrites, the cell body and axons. The topic explains resting potential, depolarization, repolarization, refractory periods and saltatory conduction, followed by synaptic transmission through neurotransmitters. An action potential is distinct from the graded potential produced at a receptor.
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