Types of neuron

59,245 views 11 slides Jul 14, 2012
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Babar Aman Khuwaja Types of Neuron

Neuron It is the basic structral and funtional unit of Nervous system. Neurons are specialized to transmit information throughout the body.

Three types of Neurons Types of Neurons Sensory Motor Interneurons

Motor Neuron Motor neurons   carry signals from the central nervous system to the outer parts (muscles, skin, glands) of your body . If its axon terminal join with other neuron it forms synapse, but if it join with muscles or glands it form motor nerve end plate. Largest nerve cell in nervous system. Also called multipolar neuron because numerous dendrites projects from cell body, in multiple direction.

Motor Neuron Cont’d Deals with OUTGOING messages from the brain/spinal cord to act upon the outside world They have very long axons.

Sensory Neuron Sensory neurons  carry signals from the outer parts of your body (periphery) into the central nervous system . Sensory neurons   also called unipolar neuron, bcz Dendrites and Axon terminal arises from same axis. Also called AFFERENT Neurons Transmit impulses from the receptors in our sense organs (the eyes, ears, skin, nose, tongue and muscles, organs ) to the brain.

Pseudounipolar neuron   Is a sensory neuron in the peripheral nervous system . Dendrites and Axon terminal arises from same stem.

Inter Neuron ( associative neurons) Interneurons  connect various neurons within the brain and spinal cord .   Interneurons ,  carry information between motor and sensory neurons . Only found in the brain, spinal cord, and eye. Easy to recognize – they have short axons.

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