Examlex
Neurotransmitter release in the autonomic nervous system is always inhibitory.
AV Node
The atrioventricular node, a part of the electrical conduction system of the heart that coordinates the top of the heart. It plays a crucial role in the control of the heart rate.
Purkinje Fibers
Purkinje fibers are specialized cardiac muscle fibers that conduct electrical impulses in the heart, contributing to the regulation of heartbeats.
Resting Membrane Potential
The voltage difference across a cell's plasma membrane in the absence of stimulation, crucial for the transmission of nerve impulses.
Cardiac Muscle Cells
Specialized muscle cells in the heart that contract to pump blood throughout the body; also known as cardiomyocytes.
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