Question

What is a neuron?

Answer 1

Neuron:

1. The neuron is the structural and functional unit of the nervous system.
2. Neurons can detect, receive, and transmit a variety of inputs.
3. The three major parts of this microscopic structure are the cell body, dendrites, and axons.
4. Cytoplasm, cell organelles, and Nissl's granules are all found in the cell body.
5. Nissl's granules are found in dendrites, which are tiny filaments that branch frequently and extend from the cell body.
6. The axon is a branching fiber with a long distal end.
7. Each branch ends in a synaptic knob, a bulb-like structure that houses synaptic vesicles that contain neurotransmitter molecules.
8. Nerve impulses are transmitted through axons from the cell body to a synapse or a neuromuscular junction.
9. Neurons can be unipolar, bipolar, or multipolar, depending on the number of axons and dendrites.