NAME THE THREE TYPES OF NEURONS..... DON'T SPAM....
Answers
Explanation:
- Functionally neurons can be divided into three categories:
- Functionally neurons can be divided into three categories:a) Sensory or afferent neurons: They carry signal towards the brain or spinal cord
- Functionally neurons can be divided into three categories:a) Sensory or afferent neurons: They carry signal towards the brain or spinal cordb) Motor or efferent neurons: They carry signals from the brain or spinal cord
- Functionally neurons can be divided into three categories:a) Sensory or afferent neurons: They carry signal towards the brain or spinal cordb) Motor or efferent neurons: They carry signals from the brain or spinal cordc) Inter - neuron or mixed neuron: Present in the grey matter of the spinal cord and helps in conversion of sensory signals into appropriate motor signals.
Answer:
Sensory neurons
Sensory neurons are the nerve cells that are activated by sensory input from the environment - for example, when you touch a hot surface with your fingertips, the sensory neurons will be the ones firing and sending off signals to the rest of the nervous system about the information they have received.
The inputs that activate sensory neurons can be physical or chemical, corresponding to all five of our senses. Thus, a physical input can be things like sound, touch, heat, or light. A chemical input comes from taste or smell, which neurons then send to the brain.
Most sensory neurons are pseudounipolar, which means they only have one axon which is split into two branches.
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. There are in fact two types of motor neurons: those that travel from spinal cord to muscle are called lower motor neurons, whereas those that travel between the brain and spinal cord are called upper motor neurons.
Motor neurons have the most common type of ‘body plan’ for a nerve cell - they are multipolar, each with one axon and several dendrites.
Interneurons
As the name suggests, interneurons are the ones in between - they connect spinal motor and sensory neurons. As well as transferring signals between sensory and motor neurons, interneurons can also communicate with each other, forming circuits of various complexity. They are multipolar, just like motor neurons.
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