When the nervous system signals a muscle to contract, the ________ ion channels open
A) phosphorus B) actin C) sodium D) myosin
C
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Which of the following describes the term diastole?
A) contraction of the heart B) relaxation of the heart C) blood tension D) a heart murmur
Data on connections between sports and international relations suggests that sports
A. are most often used as forms of public diplomacy. B. are unrelated to all aspects of international relations. C. shape important negotiations related to vital national interests in global politics. D. only influence political relationships when nations have little power.
Enzymes are:
A. proteins that are catalysts within the body. B. carbohydrates that are catalysts within the body. C. transport proteins. D. structural proteins.
What effect will a complete injury above C3-C5 have on a patient's spontaneous ventilation?
a. complete diaphragmatic paralysis would result -patient would require mechanical ventilation b. patient would require supplemental oxygen but would still be able to breathe spontaneously c. ventilation would be unaffected since the respiratory centers are safely located in the brain d. partial diaphragmatic paralysis would result -patient would initially require mechanical ventilation