Smooth muscle is found in the walls of hollow organs, such as the bladder, where it contracts to change the shape and size of the organ. It is not attached to bones, does not consist of branched cells, does not have a striated appearance, and is not found in the heart.

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Smooth Muscle

Question 123

Multiple Choice

Smooth muscle

A) attaches to bones.
B) is part of the walls of hollow organs, such as the bladder.
C) consists of branched cells that form a strong structural network.
D) has a striated appearance because the actin and myosin filaments are regularly arranged.
E) makes up the heart.

Correct Answer: