White matter is primarily composed of:
Correct answer: A. Axons
- A. Axons
- B. Synapse
- C. Neuron somas
- D. None of these
Explanation
The explanation for this question is as follows: The Outer zone is white matter and contains axons of sensory neurons in the dorsal column and axons of motor neurons in the ventral column; these nerve tracts may also contain the dendrites of the nerve cells. The inner zone is Grey matter and primarily consists of the cell bodies of interneurons, motor neurons, and neuroglia.
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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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