Examlex
The tissue that protects the brain from mechanical injury is ____________________.
Depolarization
The process of reduction in electric charge across a cell membrane, typically initiating a neural impulse or muscle contraction.
Cardiac Muscle Cell
Specialized cardiac muscle cells that involuntarily and rhythmically contract to circulate blood throughout the body.
AV Node
The atrioventricular node, a part of the cardiac conduction system that delays the electrical impulse before it passes to the ventricles.
AV Bundle
The atrioventricular bundle (bundle of His), a collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the AV node to the ventricles of the heart.
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