For Each Historical Identification Question, Define the Term and Briefly

question 9

Essay

For each historical identification question, define the term and briefly describe its historical significance.
Jean-Jacques Rousseau

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Definitions:

Ligand-Gated Sodium Channels

Ion channels in cell membranes that open or close in response to the binding of a chemical signal (ligand), specifically allowing sodium ions to pass through.

Membrane Receptor

A specialized protein molecule embedded in the cell membrane that can interact with specific molecules, starting a chain of cell responses.

Depolarization

The process in which a cell's membrane potential becomes less negative, moving towards zero, which is critical in the initiation of action potentials.

Threshold Stimulus

Stimulus resulting in a local potential just large enough to reach threshold and produce an action potential.