lesson 3 synapses and reflexes Flashcards
the connection between two neurones is called what
a synapse
reflexes are what
rapid and automatic responses
reflexes don’t involve what
the conscious part of the brain
reflexes reduce what
the chances of being injured
if someone shines light on your eyes what happens to your pupils
it gets smaller so that less light can get into the eye
(Stops it from getting damaged)
if you get shocked, your body releases what automatically
hormone adrenaline
(it doesn’t wait till you get shocked)
the passage information of a reflex (from receptor to effector) is called what
a reflex arc
the reflex arc goes through what
the CNS
the neurones in reflex arcs go through what
the spinal cord or through an unconscious part of the brain
when a stimulus is detected by receptors, what occurs
impulses are sent along a sensory neurone to the relay neurone in the CNS
when the impulses reach a synapse between the sensory neurone and the relay neurone, what does this trigger
they trigger chemicals to be released
when the impulses reach a synapse, they trigger chemicals to be released in between the sensory and relay neurone, why is this done
as these chemicals cause impulses to be sent along the relay neurone
when impulses reach a synapse between the relay neurone and motor neurone what is occuring
chemicals are released and causes impulses to be sent along the motor neurone
the impulses travel along the motor neurone, to the what
effector
