What is the fundamental unit of nervous system?

A neuron, also known as a nerve cell, is the fundamental unit of the nervous system. It is a specialized cell that is responsible for transmitting information throughout the body. Neurons have a unique structure that allows them to communicate with other neurons and with other types of cells, such as muscle cells and gland cells.

The spinal cord and the brain are both composed of networks of neurons, and nerves are bundles of axons (long projections of neurons) that transmit signals between different parts of the body and the nervous system. However, the neuron is the basic building block of the nervous system and is essential for its function.