Q21 of 54 Page 49

The following are the parts of a neuron:

a) Axon b) Terminal branches


c) Cyton d) Dendrites


The correct pathway of a nerve impulse through these parts is _____________.

Firstly the stimulus is received with the help of dendrites, after that they are transmitted to cyton, and then they travel through the axon and at the end reaches to the terminal branches from where they are transmitted to another neuron.

Therefore correct sequence is : ii) dcab. It is also shown in following picture:


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Which system of the body is mostly affected due to this infection?

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Blinking when a beam of light is suddenly focussed on the eyes and sudden withdrawal of hand upon touching a hot body are some of the examples of reflex actions. Which part of the central nervous system acts as the centre these actions?

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Assertion (A): All spinal nerves are mixed nerves.

Reason (R): Each spinal nerve has a sensory root and a motor root.