Briefly describe the events that occur during the depolarizing phase of an action potential

What will be an ideal response


Voltage-gated Na+ channels open rapidly allowing Na+ to rush into the cell driven by both the electrical and chemical gradient. The inward rush of Na+ causes the membrane potential to become less negative, resulting in depolarization.

Anatomy & Physiology

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Which glial cells possess phagocytic abilities?

a. astrocytes b. ependymal cells c. neurons d. microglia e. oligodendrocytes

Anatomy & Physiology

Which electrolyte is never secreted into the filtrate?

A. Chloride B. Potassium C. Calcium D. Sodium

Anatomy & Physiology

The pH of the contents of the stomach lumen is considerably higher than that of interstitial fluid.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Within smooth muscle cells, intermediate filaments are linked by dense ________ at points where they attach on the inner surface of the cell membrane.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology