Basics

A quick protective response

Follow one simplified pathway involved in withdrawing from heat.

A schematic hand icon near a warm pan connects through a sensory pathway to spinal circuitry and back to a muscle icon.
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The picture in words

Sensory input
A receptor sends information toward the spinal cord.
Spinal pathway
Local circuitry can organize a rapid response.
Motor output
Signals activate muscles involved in withdrawal.

Reading the illustration

Trace the sensory route into the spinal circuitry, then the motor route toward the muscle. The arrows show the order of signaling in a simplified reflex.

Try a question

What can the spinal pathway contribute before a person describes the sensation?

Show the explanation

It can organize a rapid protective movement. Information also reaches the brain, contributing to awareness and further action.

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