Random, uncoordinated excitation and contraction of cardiac cells is known as __________
Fill in the blank(s) with correct word
fibrillation
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Cardiac cells damaged by infarction will show all of the following except
A) a switch to anaerobic metabolism. B) release of enzymes into the circulation. C) release of troponin T and I into the circulation. D) release of CK-MB into the circulation. E) an increase in metabolic activity.
Microtubule growth will stop if
A) Concentration of tubulin drops below a critical point. B) Cholchicine binds to free tubulin. C) GTP on the ?-tubulin is hydrolyzed. D) All of the above
What is the action of the muscle labeled C?
a) laterally flex and rotate head b) extends head c) depresses tongue d) protracts mandible (as in opening the mouth) e) elevates the mandible (as in closing the mouth)
Sprains occur in what type of tissue?
A. muscles B. tendons C. ligaments D. all of the above