Examlex
Exercise that involves contraction with movement is called ____________________.
Parasympathetic
Refers to the part of the autonomic nervous system that conserves energy by slowing the heart rate, increasing intestinal and gland activity, and regulating the relaxation response.
Endorphins
Natural, pain-relieving chemicals produced by the body, often released in response to stress or exercise, and associated with feelings of euphoria.
Morphine
A potent opiate analgesic drug derived from the opium poppy used to relieve severe pain.
Receptor Sites
Specific locations on cell membranes or within cells where specific substances like hormones, neurotransmitters, or drugs can bind and elicit a biological response.
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