Examlex
One of the most radiosensitive tissues in the body is ____________ tissue.
Monoamine Neurotransmitters
Chemical messengers in the brain that include serotonin, dopamine, and norepinephrine, involved in regulating mood, arousal, and emotion.
Acetylcholine
A neurotransmitter in both the central and peripheral nervous systems that plays a key role in muscle movement and cognitive functions.
Epinephrine
A hormone and neurotransmitter also known as adrenaline, involved in the body's fight-or-flight response.
Acetylcholine
A neurotransmitter in both the peripheral nervous system (PNS) and central nervous system (CNS) in many organisms that plays a role in muscle activation, memory, and learning.
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