BODY RESPONSE TO STIMULI - NO CONSCIOUS DECISION
- REALLY FAST
- RECEPTOR TO EFFECTOR
SIMPLE REFLEX - HELP PROTECT BODY - RAPID
PATHWAY OF NEURONES - RECEPTOR TO EFFECTOR = REFLEX ARC
SIMPLE REFLEX ARC
- THERMORECEPTOR - DETECT HEAT STIMULUS
- SENSORY NEURONE - CARRY IMPULSE TO RELAY
- RELAY NEURONE - CONNECT TO MOTOR
- MOTOR NEURONE - SEND IMPULSE TO EFFECTOR (E.G. BICEPS MUSCLE)
- MUSCLE CONTRACT - WITHDRAW HAND - NO DAMAGE
- RELAY NEURONE - COULD OVERRIDE REFLEX
- BRAIN TELL TO WITHSTAND HEAT
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