(N/A) neuron (nerve cell) is the structural and functional unit of the nervous system. Its structure consists of three main parts:
$1$. Cell Body (Cyton): It contains the nucleus and cytoplasm (Nissl granules). It is responsible for the metabolic activities of the cell.
$2$. Dendrites: These are short,branched extensions that receive electrical impulses from other neurons or sensory receptors and transmit them towards the cell body.
$3$. Axon: This is a long,single fiber that carries electrical impulses away from the cell body to other neurons,muscles,or glands. It is often covered by a myelin sheath for faster signal transmission.
Function: Neurons are specialized to detect,receive,and conduct nerve impulses (electrical signals) throughout the body,enabling communication between different parts of the body and the brain.