Examlex
Which of the following radiations has the greatest frequency?
Threshold
The minimal level of stimulation required to trigger a neural impulse or a physiological response.
Nervous System
The network of nerve cells and fibers that transmits nerve impulses between parts of the body, overseeing both voluntary and involuntary actions.
Muscles
Tissue in the body composed of fibers that contract to produce movement or maintain posture.
Glands
Organs in the body that secrete hormones or other substances directly into the blood or onto a surface.
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