Neurons are the fundamental building blocks of the nervous system, acting as the communication pathway, transmitting electrical signals between the brain and sensory organs. Neurons can be categorized into three types based on their functions:
This article will focus on highlighting the differences between sensory and motor neurons.
| Sensory Neuron | Motor Neuron |
| These neurons transmit sensory information from sensory organs to the brain and spinal cord. | These neurons convey motor information from the brain and spinal cord to specific muscles or glands. |
| They reside in the dorsal root ganglion of the spinal nerve. | They are situated in the ventral root ganglion of the spinal cord. |
| They are unipolar. | They are multipolar. |
| They possess a short axon. | They have a long axon. |
| Approximately 10 million sensory neurons are found in an adult human body. | Around half a million motor neurons are present in the human body. |
| They are located in sensory organs such as the eyes, skin, ears, tongue, and nose. | They are found in muscles and glands. |
The primary distinctions between sensory and motor neurons lie in their structure and functions. Both these types of neurons work together to ensure the central nervous system can effectively coordinate various bodily functions.
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To delve deeper into sensory and motor neurons, their structures, functions, and more, visit the Biology section
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What is the main difference between sensory and motor neurons?
The main difference between sensory and motor neurons is their function and structure. Sensory neurons carry impulses from sensory organs to the central nervous system, while motor neurons carry motor impulses from the central nervous system to specific effectors.
Where are sensory and motor neurons located?
Sensory neurons are located in the dorsal root ganglion of the spinal nerve, while motor neurons are located in the ventral root ganglion of the spinal cord.
What is the structure of sensory and motor neurons?
Sensory neurons are unipolar and comprise of a short axon, while motor neurons are multipolar and comprise of a long axon.