There is some mistake in the question and also in the options. Nerve cell is the longest cell in human body not largest cell. the largest cell in human body is ovum not nerve cell

The Largest Cell in Human Body

The human body is made up of trillions of cells, each with its own unique structure and function. Among these cells, the nerve cell, also known as the neuron, is the largest.

Structure of a Nerve Cell

A nerve cell consists of three main parts:

1. Cell body: This is also known as the soma, and it contains the nucleus and other organelles that are necessary for the cell to function.

2. Dendrites: These are branching extensions of the cell body that receive signals from other neurons and transmit them to the cell body.

3. Axon: This is a long, thin extension of the cell body that transmits signals away from the cell body to other neurons or to muscles or glands.

Size of a Nerve Cell

Nerve cells can vary in size, but on average, they range from 4 to 100 microns in diameter and can be up to several feet long in some cases. The largest nerve cells in the human body are the motor neurons, which can reach lengths of up to 4.5 feet.

Importance of Nerve Cells

Nerve cells are essential for the proper functioning of the nervous system, which is responsible for controlling and coordinating all of the body's activities. They transmit electrical and chemical signals between the brain and other parts of the body, allowing us to move, think, feel, and experience the world around us.

Conclusion

In conclusion, the nerve cell is the largest cell in the human body. Its unique structure and function make it essential for the proper functioning of the nervous system and for our overall health and well-being.