Synapses and Reflexes

Synapses connect Neurons.
1. The connection between 2 neurons is called a synapse, the nerve signal is transferred by chemicals which diffuse cariss the gap, these chemicals then set off a new electrical signal in the next neurone.
Reflexes help prevent injury.
1. Reflexes are rapid and automatic to certain stuff that don't involve the consious part of the brain- they can reduce that chances of injury, the assge of inofrmation ina reflex is called a felfex arc.
The reflex arc goes through the Central Nervous System (CNS).
1. The neurons in reflex arcs got through the spinal cord or through an unconsious part of the brain, when a stimulus is detected by receptors impulses are sent along a sensory neurone to a relay neurone in the CNS, when the impulses reach a synapse between the sensory neurone and the relay neurone they trigger chemical to be released which causes impulses to be sent along the relay neurone, when impulses reach a synapse between the relay and motor neurone impluses are sent which travel along the motor neurone to the effector which is usually a muscle.
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Resource summary

	Created by Emily Gill almost 5 years ago