★ Muscle Anatomy Quiz
What does calcium do to the actin?
A. Covers myosin binding sites
B. Uncovers myosin binding sites
C. Covers actin binding sites
D. Uncovers actin binding sites
Select your answer:
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Urinary System › View How does blood leaving the kidneys compare to blood entering the kidneys?
A. A
B. B
C. C
D. D
EKG Medical Term › View
PAC is an abbreviation for:
A. Partial Advanced contraction
B. premature atrial contraction
C. patent atrial coarctation
D. polyatrial Coarctation