Q 9. Draw a labelled diagram of a neuron.
A neuron consists of a cell body with a nucleus and cytoplasm, from which long thin hair-like parts arise. Each neuron consists of axons, a single long part (process), and dendrites, which are the short, branched parts (processes).
The axon transmits impulses away from the cell body, whereas the dendrite receives nerve impulses from other nerve cells or external stimuli.