Which type of muscle is found in the wall of hollow organs? unitary smooth muscle skeletal muscle multi unit smooth muscle cardiac muscle
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Unitary smooth muscle is primarily responsible for the contraction of hollow organs like the intestines and bladder. This type of muscle allows for coordinated contractions, creating a rhythmic wave-like motion called peristalsis, crucial for moving substances through the digestive system. On the other hand, multi-unit smooth muscle is found in places where finer control is needed, such as in the eye’s iris or the walls of blood vessels. Unlike unitary smooth muscle, multi-unit smooth muscle consists of fibers that operate independently, allowing for precise adjustments in response to stimulus.