Examlex
Regardless of the level of activity, older adults cannot experience positive emotions as frequently as younger adults.
Depolarization
A process in which the electrical charge of a cell membrane is reduced, allowing for the initiation of electrical impulses in nerve and muscle cells.
Electrical Impulses
Rapid, transient flows of electric charge that transmit information within the nervous system and across synapses, or power devices like pacemakers.
SA Node
The sinoatrial node, a group of cells in the right atrium of the heart that initiates the heart's electrical impulses, acting as a natural pacemaker.
AC Interference
Alternating Current interference; disturbances in electronic equipment caused by alternating current supply.
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