Arkansas Esthetician Practice Exam

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What type of nerves are motor nerves?

Carry messages from the brain to muscles
Carry messages to the brain
Regulate the heartbeat
Control sweat glands

The correct answer is: Carry messages from the brain to muscles

Motor nerves are a type of peripheral nerves that carry signals from the brain and spinal cord to muscles and organs, controlling their voluntary movements. This means that option B, carrying messages to the brain, is incorrect because motor nerves do not carry signals in that direction. Options C and D are also incorrect because they refer to other functions of nerves, such as regulating the heart rate and controlling sweat glands, which are not specific to motor nerves.