Examlex
What chamber of the heart pumps blood to the left lung?
Sodium Channels
Ion channels found in cell membranes that allow sodium ions to flow into or out of cells, playing a crucial role in generating and transmitting electrical signals.
Initial Segment
Area near where the axon meets the cell body that is rich in voltage-gated channels, which generate the action potential.
Voltage-Sensitive Ion Channels
Voltage-sensitive ion channels are a class of transmembrane proteins that open or close in response to changes in the electrical potential across the cellular membrane, essential for neuronal signaling.
Action Potential
An action potential is a temporary reversal in the electrical charge across a cell's plasma membrane, responsible for the propagation of nerve impulses.
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