What is the structure and function of sensory neurons?

Sensory neurons (sometimes referred to as afferent neurons) are nerve cells which carry nerve impulses from sensory receptors towards the central nervous system and brain. When these nerve impulses reach the brain, they are translated into ‘sensations’, such as vision, hearing, taste and touch.

What is the structure of sensory and motor neurons?

Motor neurons that control muscle contractions have a cell body on one end, a long axon in the middle and dendrites on the other end. Sensory neurons have dendrites on both ends, connected by a long axon with a cell body in the middle.

What is the structural difference between a motor and relay neuron?

Relay neurons are found between sensory input and motor output/response. Relay neurons are found in the brain and spinal cord and allow sensory and motor neurons to communicate. Motor neurons are found in the central nervous system (CNS) and control muscle movements.

What is the function of motor neurons?

Motor neurons of the spinal cord are part of the central nervous system (CNS) and connect to muscles, glands and organs throughout the body. These neurons transmit impulses from the spinal cord to skeletal and smooth muscles (such as those in your stomach), and so directly control all of our muscle movements.

What is the function of sensory and motor neurons?

Sensory neurons are neurons responsible for converting external stimuli from the environment into corresponding internal stimuli. Motor neurons are neurons located in the central nervous system (CNS); they project their axons outside of the CNS to directly or indirectly control muscles.

How does motor neurons function together with sensory neurons?

Sensory cells carry afferent impulses to a central interneuron, which makes contact with a motor neuron. The motor neuron carries efferent impulses to the effector, which produces the response.

What are the structures on sensory neuron?

Sensory neurons have dendrites on both ends and are connected by a long axon that has a cell body in the middle. Motor neurons have a cell body on one end and dendrites on the other end, with a long axon in the middle.

What is the structure of neurons?

The primary components of the neuron are the soma (cell body), the axon (a long slender projection that conducts electrical impulses away from the cell body), dendrites (tree-like structures that receive messages from other neurons), and synapses (specialized junctions between neurons).

What is the structure of motor neuron?

The structure of a motor neuron can be categorized into three components: the soma, the axon, and the dendrites. The axon works to transmit information it receives down its body to the dendrites at the end of the neuron. Motor neurons are known as multipolar neurons in terms of their structure.

How are sensory, relay and motor neurons formed?

The structure and function of sensory, relay and motor neurons. Structure WHAT IS IT? Cell body This includes a nucleus which contains t Axon This is a long extension from the cell b Myelin sheath This insulates or protects the axon from Terminal button Sends signals to an adjacent cell (anoth

Where are relay neurons located in the brain?

Relay neurons are found between sensory input and motor output/response. Relay neurons are found in the brain and spinal cord and allow sensory and motor neurons to communicate.

Where are sensory neurons located in the brain?

However, not all sensory neurons reach the brain, as some neurons stop at the spinal cord, allowing for quick reflex actions. Relay neurons are found between sensory input and motor output/response. Relay neurons are found in the brain and spinal cord and allow sensory and motor neurons to communicate.

Where are motor neurons located in the CNS?

Motor neurons are found in the central nervous system (CNS) and control muscle movements. When motor neurons are stimulated they release neurotransmitters that bind to the receptors on muscles to trigger a response, which lead to movement.