NEET PG DENTAL EXAM

Detailed explanation-1: -A neuron has three main parts: dendrites, an axon, and a cell body or soma (see image below), which can be represented as the branches, roots and trunk of a tree, respectively. A dendrite (tree branch) is where a neuron receives input from other cells.

Detailed explanation-2: -Dendrites are rarely more than about a millimeter long and often much shorter. Here are the dimensions of dendrites for a few types of neurons. Neurons communicate through specialized junctions called synapses.

Detailed explanation-3: -Neurons are polarized cells (1) whose axons and dendrites are often highly branched. Branching provides the surface area necessary for dendrites to receive inputs from thousands of other cells or from the environment (2), and for axons to output signals to multiple cells.