Which molecules are involved with regulation of cross bridge attachment activity?

a. calcium ions.
b. troponin.
c. tropomyosin.
d. both (a) and (b) above.
e. all these answers.


D

Anatomy & Physiology

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John is a sprinter who specializes in quick and powerful bursts of speed followed by periods of rest. Jim is a marathon runner who specializes in long, steady runs. Compared to Jim, John is likely to have:

A. legs with a larger diameter. B. legs with a smaller diameter. C. hypertrophy of type I muscle fibers. D. a higher density of capillaries in his legs. E. lower concentrations of glycolytic enzymes in his leg muscles.

Anatomy & Physiology

In which of the following would you expect the blood level of bilirubin to be elevated?

A) a person suffering from higher levels of hemolysis B) an alcoholic with a damaged liver C) a person with an iron-deficient diet D) both a person suffering from hemolysis and an alcoholic with a damaged liver E) a person with increased clotting times.

Anatomy & Physiology

The ____________________ lobes of the cerebral cortex are responsible for initial processing of visual input

Fill in the blank(s) with correct word

Anatomy & Physiology

The pull called tension is a (n) ________ force.

A) Passive B) Assertive C) Aggressive D) Active E) all of the above

Anatomy & Physiology