Central nervous system consists of:
Correct answer: A. Brain and spinal cord
- A. Brain and spinal cord
- B. Spinal nerves only
- C. Cerebellum and brain stem only
- D. Cerebrum and spinal column
Explanation
The central nervous system (CNS) includes the brain and the spinal cord, which are the control centres of the nervous system. The brain is responsible for processing and interpreting sensory information, generating thoughts and emotions, and controlling voluntary and involuntary actions. The spinal cord serves as a pathway for transmitting nerve signals between the brain and the rest 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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