Synapses and Reflexes

Question 1

What is a synapse?

Answer 1

The connection between two neurons

Question 2

What are reflexes

Answer 2

fast, automatic responses to a stimulus that doesn’t involve the conscious part of your brain

Question 3

What is the passage of information from a receptor to an effector called?

Answer 3

reflex arc

Question 4

What are the steps for a reflex reaction?

Answer 4

1) The neurones in reflex arcs go through the unconscious parts of the brain or the spinal cord
2) When a stimulus is detected it is sent along the sensory neurone to a relay neurone
When this is done, as it reaches the synapse, a chemical is released
3) The chemicals cause the impulses to be sent along the relay neurone to the motor neurone.
4) When it reaches the synapse a chemical is released again.
5) The impulse is sent to the effector and the effector responds.