Increased cytosolic [Ca₂+] in smooth muscle cells can be accomplished by release of Ca₂+ from internal stores. These internal stores are in the A) Caveolae B) M itoc ho nd ria C) Golgi apparatus D) Nucleus E) SR, sarcoplasmic reticulum

Question

Quizplus · Accepted Answer

The sarcoplasmic reticulum (SR) is the primary internal store in muscle cells, including smooth muscle cells, responsible for the release and uptake of calcium ions (Ca^2+), which is crucial for muscle contraction and relaxation processes.

Increased Cytosolic [Ca2+] in Smooth Muscle Cells Can Be Accomplished

Increased Cytosolic [Ca₂+] in Smooth Muscle Cells Can Be Accomplished