Evaluate

question 167

Essay

Evaluate .

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Definitions:

Acetylcholine

A neurotransmitter in the brain and body that plays a key role in muscle movement and cognitive functions.

Motor Neurons

Motor neurons are nerve cells responsible for transmitting impulses from the spinal cord and brain to muscles and glands, enabling movement and actions.

Sensory Neurons

Nerve cells responsible for converting external stimuli from the environment into internal electrical impulses for the brain.

Chemical Messenger

Biologically active molecules such as hormones and neurotransmitters that transmit signals across cells or throughout the body.