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The Combining Form Lith/o- Means "Stone

question 300

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The combining form lith/o- means "stone."


Definitions:

Norepinephrine

A neurotransmitter and hormone involved in arousal and stress response, also known as noradrenaline.

Serotonin

A neurotransmitter associated with mood regulation, digestion, sleep, and other important bodily functions.

Acetylcholine

A neurotransmitter involved in many functions including muscle contraction and memory.

Upper Brainstem

The part of the brainstem that is closer to the top part of the brain, involved in basic life functions such as consciousness, breathing, and heart rate.

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