Release of Calcium from the Sarcoplasmic Reticulum in Smooth Muscle

Multiple Choice

Release of calcium from the sarcoplasmic reticulum in smooth muscle cells can be due to activation of which types of channels?

A) Ca²⁺ induced Ca²⁺ channels and IP₃-gated channels
B) Ca²⁺ induced Ca²⁺channels and store-operated channels
C) IP₃-gated channels and mechanically-gated channels
D) IP₃-gated channels and store-operated channels