State the function of a sensory neuron and a motor neuron.

Open in App

Solution

Neuron
The nervous system is made of neurons or nerve cells. They form the functional unit of the nervous system.
The neurons are electrically excitable and are involved in the transmission of electrical impulses.
Types of neurons
Based on the direction in which they carry the impulses, neurons are categorized into three types- receptor (sensory) neurons, effector (motor) neurons, and intermediate (relay) neurons.
Functions of sensory neuron
Sensory neurons carry impulses from the sensory receptors or organs to the brain or the spinal cord.
They are also called receptor neurons.
Sensory neurons are unipolar and have a short axon and long dendron.
Eg- auditory nerve (internal ear to the brain).
Functions of motor neurons
Motor neurons carry impulses from the brain or the spinal cord to the effector organs like the glands, smooth muscles, or tissues.
They are also called effector neurons.
Motor neurons are multipolar and have a large axon and multiple dendrites.
Eg.- the oculomotor nerve (brain to eye muscles).

Suggest Corrections

Similar questions

One of the following gives the correct sequence of the components in a reflex arc. This is :

(a) Receptors $\to$ Muscle $\to$ Sensory neuron $\to$ Motor neuron $\to$ Spinal cord

(b) Receptors $\to$ Motor neuron $\to$ Spinal cord $\to$ Sensory neuron $\to$ Muscle

(d) Receptors $\to$ Sensory neuron $\to$ Spinal cord $\to$ Motor neuron $\to$ Muscle

State the function of sensory neurons and motor neurons.

What are sensory neuron and motor neuron?

___________ connects the sensory neuron and the motor neuron.

Join BYJU'S Learning Program