Question

when you touch a pointed nail immediately pull your hand back.write the step involved in this action? write the different organ systems involved.
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Answer 1

Answer:

a reflex is an automatc rexn to stimulus.

stimulus is something that cause an action a simple reflex ,a neuron brings information about stimulus to brain or spinal cord connect with motor neuron

motor neuron send out message t muscle.

the muscle respond that the message by contracting.

every reflex has five parts

sensor,

sensory neuron ,

control center,

motor neuron,

and muscles...

plz Mark as brainliest

Answer 2

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