Question

Longest cell in the human body is
A. Nerve cell
B. Leg muscle cell
C. Bone cell
D. Heart muscle cell

Answer 1

Cells are the basic functional and structural unit of life.
Different types of cells are present in our body and all these cells perform different functions to survive in life. Cells are of different size and shape. Different sizes and shapes are due to the different functions performed by the different types of cells.

Complete answer:
Human body consists of millions of cells and all the cells in the body joined together to form tissues and further into a particular organ and organ system.
For example: Nerve cells makes up the brain
Heart cells make up the cardiac or heart.
Kidney is made up of nephrons.
The largest cell in the human body is the female cell and smallest is sperm or male cell.
The longest cell in the human body is the nerve cell.
Nerve cells or neurons are found in the brain.
The length of the neuron is 90cm-100cm.
Nerve cell connects the central nervous system (CNS) to all other body parts.
Nerve cell consists of dendrite, cell body, axon and axon terminal or synaptic poles.
Cell body is typically compact and contains the nucleus into them.
The nucleus of the nerve cells are deprived of the centriole that’s why the neurons lack the dividing capacity.
Dendrites are the small numerous branches arising from the cell body.
Dendrites collect the impulses from the different parts and send it further to the cell body and axon.
Axon is the single stem arising from the cell body which is myelinated or unmyelinated.
The space between the myelinated and unmyelinated axons is known as the node of ranvier.

So, the correct option is option A.nerve cell.

Note:
Neurons are typically classified into three types based on their function.
Sensory neurons respond to stimuli such as touch, sound, or light that affect the cells of the sensory organs, and they send signals to the spinal cord or brain.
Motor neurons receive signals from the brain and spinal cord to control everything from muscle contractions to glandular output.