Examlex
The right corticospinal tracts of the spinal cord usually carry motor information from the left cerebral cortex of the brain.
Endorphins
Natural painkillers produced by the brain, which also play a role in enhancing feelings of pleasure.
Hormones
Chemical messengers that are manufactured by the endocrine glands, travel through the bloodstream, and affect other tissues.
Parasympathetic Nervous System
A division of the autonomic nervous system responsible for rest and digest functions, conserving and restoring the body's energy.
Sympathetic Nervous System
Part of the autonomic nervous system that prepares the body for physical activity by triggering the fight or flight response.
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Q85: In the light <sup>-</sup>adapted state:<br>A) rods are