Which type of muscle fiber has caveolae but no T tubules?

Name: Which type of muscle fiber has caveolae but no T tubules?
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Question

Quizplus · Accepted Answer

Smooth muscle fibers have caveolae, which are invaginations of the cell membrane that are involved in signaling and cell-to-cell communication, but they do not have T-tubules like skeletal and cardiac muscle fibers. White muscle fibers are not a type of muscle fiber but refer to a classification based on the speed of contraction and reliance on anaerobic metabolism.

Which Type of Muscle Fiber Has Caveolae but No T