Synapses and Reflexes

Synapses and Reflexes

1. Synapses connect Neurons.

   • 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.

2. Reflexes help prevent injury.

   • 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.

3. The reflex arc goes through the Central Nervous System (CNS).

   • 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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