SCIENCE
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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true
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false
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Either A or B
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None of the above
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Detailed explanation-1: -The basic unit of communication in the nervous system is the nerve cell (neuron).
Detailed explanation-2: -There are two types of neurons – sensory neurons and motor neurons. A group of neurons form a nerve. Neurons are the structural and functional units of the nervous system. Nerve is an enclosed, cable-like bundle of axons and nerve fibres found in the peripheral nervous system.
Detailed explanation-3: -It comprises three parts: Axon. Cell Body. Dendrites.
Detailed explanation-4: -Neurons have three basic parts: a cell body and two extensions called an axon (5) and a dendrite (3). Within the cell body is a nucleus (2), which controls the cell’s activities and contains the cell’s genetic material. The axon looks like a long tail and transmits messages from the cell.