SCIENCE
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cell body
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Dendrite
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Axon
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Axon terminal
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Detailed explanation-1: -The axon is a long fibre, the distal end of which is branched. Each branch terminates as a bulb-like structure called the synaptic knob.
Detailed explanation-2: -The long fibre arising from the cell body of the neuron is called an axon. It transmits nerve impulse away from the cell body towards the next nerve or effectors.
Detailed explanation-3: -Although neuroscientists typically draw neurons with a single unbranched axon and one presynaptic terminal, most axons are extensively branched into terminal arbors, often producing hundreds or thousands of presynaptic terminals (Fig.
Detailed explanation-4: -The distal branch of the axon terminates in bulb-like structures called synaptic knob filled with chemicals called neuro transmitters.
Detailed explanation-5: -(b) The long fibre of a neuron is known as the axon.