Answer: The membrane becomes less polarized.
Which of the following describes a depolarization?

In biology depolarization (British English: Depolarisation) is a change within a cell during which the cell undergoes a shift in electric charge distribution resulting in less negative charge inside the cell. Depolarization is essential to the function of many cells communication between cells and the overall physiology of an organism. Most cells in higher organisms maintain an internal environment that is negatively charged relative to th…

Like skeletal muscle depolarization causes the opening of voltage-gated calcium channelsand release of Ca2+from the t-tubules. This influx of calcium causes calcium-induced calcium releasefrom the sarcoplasmic reticulum and free Ca2+causes muscle contraction.

During each heartbeat a healthy heart has an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node spreads throughout the atrium and passes through the atrioventricular node down into the bundle of His and into the Purki...

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