A Special Group of Neurons in the Gray Matter of the Brain

question 66

Multiple Choice

A special group of neurons in the gray matter of the brain stem that plays a role in consciousness and the awake/sleep cycles is the ________.

• A) cerebrum
• B) reticular activating system (RAS)
• C) pineal gland
• D) limbic system
• E) cerebellum

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Definitions:

Neurotransmitter Abnormalities

Irregularities or imbalances in the chemical messengers used by the nervous system to communicate between neurons.

Depressed Patients

Individuals diagnosed with depression, a mood disorder characterized by persistent feelings of sadness, apathy, and loss of interest.

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.