Neuron System Diagram
Nucleus
Cell body
Axon
Myelin sheath
Node of Ranvier
Axon Terminal(Transmitter)
Schwann cell
Dendrite
Thick extensions that appear like cables and are called dendrites. Carry a nerve impulse into the cell body.
The neuron is the basic unit in the nervous system. It is used to receives and transmits electrochemical nerve impulses. A typical neuron has a cell body and long arms that conduct from one body part to another body part.
An axon is a long, thin process that carries impulses away from the cell body to another neuron or tissue. There is usually only one axon per neuron.
A membrane that surrounds the axon in some neurons
Helps speed up the signal (Action Potential)
Carry nerve impulses to the brain from the body and back out to the body from the brain.
The brain chemicals that communicate information throughout our brain and body.
The cell body is like any other cell with a nucleus or control center.
Produce the myelin sheath which covers the schwan cell, which helps to repair and regenerate nerves that have been damaged, help the nerve impulse to be passed on quicker so that the brain can send a impulse to ones bones and muscles.
Synapse
Neurotransmitter
Threshold
The gap between two neurons
A chemical that is activated by an action potential and sends the signal to the next neuron.
Theroshold
The strength a stimuli needs to be in order to cause an action potential
Hypothalamus
The hypothalamus is a small area in the center of the brain that has many jobs. It plays an important role in hormone production and helps to stimulate many important processes in the body.
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Corpus callosum
The brain is divided into the right and left hemisphere, and the two halves are connected by the corpus callosum.