How are neurons classified based on the number of axons and dentrites?

1.	How are neurons classified based on the number of axons and dentrites?
Answer» The structural classification of neurons depends upon the number of dendrites extending from the cell body. (i) Multipolar neurons have one axon and several dendrites; the majority of neurons in the spinal cord and brain are multipolar. (ii) Bipolar neurons have only two processes: a single dendrite and an axon. Biopolar neurons are found in the sense organs-and in the retina of the eye and in olfactory cells. (iii) Unipolar neurons lack dendrites and have a single axon, and are also sensory neurons.

Answer»

The structural classification of neurons depends upon the number of dendrites extending from the cell body.

(i) Multipolar neurons have one axon and several dendrites; the majority of neurons in the spinal cord and brain are multipolar.

(ii) Bipolar neurons have only two processes: a single dendrite and an axon. Biopolar neurons are found in the sense organs-and in the retina of the eye and in olfactory cells.

(iii) Unipolar neurons lack dendrites and have a single axon, and are also sensory neurons.

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