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There are 2 glossary search results for:   electrically excitable cells




Definition:
Refers to the ability of some cells to be electrically excited resulting in the generation of action potentials. Neurons, muscle cells (skeletal, cardiac, and smooth), and some endocrine cells (e.g., insulin-releasing pancreatic β cells) are excitable cells.

See also:
Resting Membrane Potential - Introduction



Definition:
The voltage difference across a cell plasma membrane.

The membrane potential is generally inside negative with respect to the outside, where the outside potential is generally set as the reference value. In electrically excitable cells, the value of the membrane potential can be positive (inside with respect to the outside) during electrical activity (i.e., during action potentials).

Related glossary terms/phrases:
Resting membrane potential

See also:
Resting membrane potential









Posted: Sunday, March 31, 2013
Last updated: Friday, August 28, 2015