In cardiac muscle,calcium ions are released from the sarcoplasmic reticulum due to direct interaction with the voltage-gated Ca²⁺ channels.

Question

Quizplus · Accepted Answer

In cardiac muscle, calcium ions are released from the sarcoplasmic reticulum primarily through a process called calcium-induced calcium release (CICR), which is initiated by calcium ions entering the cell through voltage-gated L-type calcium channels, not through direct interaction with channels named Ca²⁺.

In Cardiac Muscle,calcium Ions Are Released from the Sarcoplasmic Reticulum