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Nerve cell Specialisation

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Giacomo Bernadotti

on 22 September 2015

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Transcript of Nerve cell Specialisation

Nerve cell Specialisation
What is a Nerve Cell
The parts of a Neuron
This is the diagram of a neuron. The dendrites are cytoplasmic extensions. Synapses connect one neuron to another. The axon is composed of schwan cells, its purpose is to carry impulses to the axon terminals that then carry them to the muscle.
Dendrons, Dendrites and axons
Dendrons are extensions of the body cell, which then taper off into dendrites. Dendrites are what recieve impulses from the axons of other neurons. Axons, that are at the end of synapses, the long tendrils at the end of the cell are long thin structures on neurons that carry impulses.
Nerve Impulses -Reflex Reaction
Little summary of what we said
Name: Giacomo and Lucia
A nerve cell, more specifically called a neuron, is the cell that sends impulses to your body.
Stimulus (ex. touching something hot)
Receptor ([like skin cells] feels the heat)
sensory neuron (passes the message to the relay neuron)
relay neuron (sends the message to the motor neuron intead of having to send it to the brain)
motor neuron (tells the effector to move)
effector (muscle that causes the lifting of the hand)
response (ex. lifting the hand from the heat source
Full transcript