The material in the brain and spinal cord which contains the cell bodies and dendrite of nerve cells is?
Correct answer: A. Gray matter
- A. Gray matter
- B. White matter
- C. Brown matter
- D. Yellow matter
Explanation
Gray matter consists of neuronal cell bodies, dendrites, and unmyelinated axons, appearing gray due to the absence of myelin. It plays a crucial role in processing information, including sensory perception, motor control, and higher cognitive functions, such as memory and decision-making. Gray matter is primarily found in the outer layer of the brain (cerebral cortex) and inner regions of the spinal cord.
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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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