The Absence of This Neurotransmitter Would Lead to a Person

question 27

Multiple Choice

The absence of this neurotransmitter would lead to a person having problems regulating body temperature and controlling their emotions.

• A)serotonin
• B)endorphins
• C)acetylcholinesterase
• D)dopamine

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Definitions:

Blind Spot

The point in the visual field that corresponds to the lack of light-detecting photoreceptor cells on the optic disc of the retina where the optic nerve passes through.

Visual Clarity

The sharpness and clearness of vision, which allows for the detailed perception of images.

Fovea

A small depression in the retina of the eye where visual acuity is highest owing to the high concentration of cones, specialized for daylight vision, fine detail, and color.

Optic Nerve

The cranial nerve that transmits visual information from the retina to the brain, essential for sight.