Smooth muscle fibers have ________ which allow entry of Ca²⁺ from the extracellular fluid, and ________, which allow impulses to spread between adjacent fibers. A) cytoskeleton; desmosomes B) tight junctions; varicosities C) caveolae; gap junctions D) varicosities; caveolae

Question

Quizplus · Accepted Answer

Caveolae allow entry of Ca2+ from the extracellular fluid, and gap junctions allow impulses to spread between adjacent smooth muscle fibers.

Smooth Muscle Fibers Have ________ Which Allow Entry of Ca2+

Smooth Muscle Fibers Have ________ Which Allow Entry of Ca²⁺