Question

Sketch and label the figure of neuron ( nerve cell ) and describe its structure.​

Answer 1

axon

dendrites

nucleus

cell body

Answer 2

** HUMAN NERVE CELL:-
*Cells of the nervous tissue are highly specialised for being stimulated and then transmitting the stimulus very rapidly from one place to another within the body.
*The brain, spinal cord and nerves are all composed of the nervous tissue.
*The cells of this tissue are called nerve cells or neurons.
*A neuron consists of a cell body with nucleus and cytoplasm from which long thin hair-like parts arise.
*Usually each neuron has a single long part (process),called the axon,and many short,branched parts (processes) called dentrites.
*An individual nerve cell may be up to a metre long.
*Many nerve fibres bound together by connective tissue make up a nerve.
*The signal that passes along nerve fibre is called a nerve impulse.
*Nerve impulses allow us to move our muscles when we want to.
*The functional combination of nerve and muscle tissue is fundamental to most animals.
*This combination enables animals to move rapidly in response to stimuli.




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