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Classification. Respond to the following statements with reference to the organ systems listed below.
-secretes substances that change the activity of other organ systems
Norepinephrine
A neurotransmitter and hormone involved in the body’s fight or flight response, influencing attention, arousal, and mood.
Serotonin
A neurotransmitter that contributes to feelings of well-being and happiness, also playing a role in regulating mood, appetite, and sleep.
Lithium
A chemical element often used in the treatment of bipolar disorder and other mental health conditions to stabilize mood.
Bipolar Disorder
A mental disorder characterized by periods of depression and periods of elevated mood or mania, leading to significant changes in behavior and energy levels.
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