Examlex
When an electron leaves the orbit of an atom, the atom then has a positive charge.
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.
Central Nervous System
The part of the nervous system that includes the brain and spinal cord, responsible for processing and coordinating sensory information and responses.
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