reflex arc (nervous system)

Question 1

what are reflex actions controlled by

Answer 1

the brain and the spinal cord

Question 2

what sequence of events happen in the reflex arc

Answer 2

the sharp object is the stimulus
the impulse travels along the sensory neurone to the spinal cord
then is passed to the association neurone
then the moter
then to the effector (muscles)
the muscle causes us to pull are hand away

Question 3

what order does the reflex arc go

Answer 3

stimulus – receptor – sensory neurone – association neurone – motor neurone — effector

Question 4

what is a synapse

Answer 4

two tiny gaps across the neurones these gaps carry chemical carry the impulses across the gaps

Question 5

how much synapses are in the reflex arc

Answer 5

2