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Which of the following correctly differentiates the types of muscles based on the type of movement that they produce?
A.smooth is voluntary; skeletal and cardiac are involuntary
B.skeletal is voluntary; smooth and cardiac are involuntary
C.cardiac is voluntary; skeletal and smooth are involuntary
D.smooth, skeletal, and cardiac are all involuntary

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DerpySeagull
B.
Skeletal muscles are the muscles we use to create deliberate movements. Cardiac is heart muscle, which we cannot control. Smooth muscle is the muscle that covers the tubing of your digestive tract, or reproductive tract, which, again, we cannot control. 

Answer:

The correct answer is B: Skeletal is voluntary, smooth and cardiac are involuntary.

Explanation:

Muscles are of three types: Skeletal muscles which can be moved consciously or voluntarily. Smooth muscles as seen in walls of most of the internal hollow organs. Smooth muscles are seen in the wall or digestive tract and urinary tract which are not in our control. These are involuntary muscles. Cardiac muscle is found in heart which is definitely involuntary as we know that heart contracts and relax rhythmically on its own.

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