Question

What are sensory and motor neurons? Write their functions

Answer 1

Hint:Neurons are cells within the nervous system that transmit information to other nerve cells, muscle, or gland cells. Neurons represent the cells contained within the brain and the nervous system.

Complete answer:
Sensory Neurons –
>Sensory input of the environment is responsible for the activation of the sensory neurons. For instance, the sense that you get as soon as you touch the hot surface.
>In this case, your sensory neurons are the ones to fire off and send off signals to your nervous system regarding the information that they have received.
>The inputs produced by the activated sensory neurons may either be physical or chemical in origin. All these inputs correspond to all our five senses.
>Most of the existing sensory neurons are pseudounipolar.

Motor Neurons –
>Motor neurons in the spinal cord represent the undeniable part of the human central nervous system.
>These participate in connecting the muscles, glands, and organs throughout every nook and corner of the human body.
>These neurons play a key role in exhibiting the transportation of impulses from the spinal cord to the smooth and skeletal muscles.
>There are two key types of neurons –
Lower motor neurons (those travelling from spinal cord to the muscles)
Upper motor neurons (those travelling from the brain to the spinal cord).
>Motor neurons are multipolar consisting of one axon and several dendrites. They participate in the process of designing a common plan for the nerve cells of the body.

Note:Neurons are the fundamental units helping the human body in sending and receiving signals that facilitates muscle movement, sensing the external world, thinking, etc.