MCAT Question A Day - 9/9/14 | FreeMCATPrep.com

MCAT Question A Day - 9/9/14

All of the following are true concerning smooth muscle EXCEPT:

A. Smooth muscle contractions are longer and slower than skeletal muscle contractions.

B. A chemical change in the environment around smooth muscle may create 'a contraction.

C. Smooth muscle does not require calcium to contract.

D. Smooth muscle is usually involuntary.

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