During the plateau phase of cardiacdepolarization

Reference no: EM13533481

What is happening during the plateau phase of cardiacdepolarization?

A) Sodium ions block voltage-gated calcium ion channels.
B) Acetylcholine is hyperpolarizing the SA node
C) Nothing - all ion gates and valves are closed.
D) voltage-gated potassium ion channels open to allowpotassium ions to diffuse out.
E) Calcium ions enter the cystol of cardiac myofibers fromsarcoplasmic reticulum and through voltage-gated slowchannels.

Reference no: EM13533481

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