The letter D in the given diagram of a multipolar neuron represents the myelin sheath which is not given in any option.
What is a multipolar neuron?
A multipolar neuron may be defined as a type of neuron that typically possesses multiple processes of dendrites with a single axon. It is considered the most ideal type of neuron in humans.
The letter A in the given diagram represents dendrites, and the letter B in the given diagram represents the cell body of a neuron or soma. It is also known as perikaryon.
The letter C in the given diagram is called the nucleus of the neuron. While the E in the given diagram represents the axon.
The function of myelin sheath allows the electrical impulses to transmit quickly and efficiently from one nerve cell to another.
Therefore, the letter D in the given diagram of a multipolar neuron represents the myelin sheath which is not given in any option.
To learn more about Multipolar neurons, refer to the link:
https://brainly.com/question/512989
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