Question

Distinguish between
a) Stimulus and Response b) Afferent and Efferent nerves c) Central nervous system and peripheral nervous system d) Receptor and effector

Answer 1

STIMULUS:
A stimulus is felt by an organism's senses which are sensitive parts of his physiology. ... When any part of an organism or of man's sensory organs is stimulated, a reaction or a response will result
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RESPONSE:
A response is the behavior that is manifested by a living organism which is the result of an external or internal stimulus.
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AFFERENT:
Afferents to a given brain area are connections that bring signals into it.
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EFFERENT:
efferents are connections that carry signals out of it.
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CENTRAL NERVOUS SYSTEM:
The central nervous system or the CNS contains the brain and the spinal cord.
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PERIPHERAL NERVOUS SYSTEM:
The peripheral nervous system or PNS contains the nerves, which leave the brain and the spinal cord and travel to certain areas of the body.
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RECEPTOR:
a receptor is stimulated, it sends a signal along the nerve cells (called neurones) to the central nervous system. (See diagram to the left.) Usually, the brain - which is part of the nervous system - coordinates a response.
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EFFECTOR:
Aneffector is any part of the body that produces the response.
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