Which of the following is involved in the relaxation of a muscle cell?

a. Synthesis of ACh by acetylcholinesterase
b. Initiation of action potentials
c. The troponin-tropomyosin complex slipping back into its blocking position
d. Detachment of actin from tropomyosin
e. T tubules actively absorbing Ca2+


C

Anatomy & Physiology

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Which of the following is not true of the gastrointestinal tract?

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Which age-related change is defined as the formation of a stationary blood clot?

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Which of the following is NOT a component of DNA?

Phosphate Deoxyribose sugar Guanine Uracil

Anatomy & Physiology