Which best describes mean arterial pressure (MAP)?
a. The amount of end diastolic volume that is ejected from the heart by contraction of the left ventricle
b. The force exerted by the blood on the walls of blood vessels during the contraction of the ventricles
c. The resistance against which the ventricles must contract in order to eject blood into systemic circulation
d. The depolarization of the AV node that is carried into the ventricles by the atrioventricular bundle
e. The volume of blood ejected with each contraction of the left ventricle
c
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What is the usual fate of orally ingested enzyme supplements?
a. Digestion by gastrointestinal proteases b. Rapidly degradation by salivary secretions c. Almost complete absorption in original form from the stomach d. Complete absorption in original form from the jejunum e. Rapid excretion through the digestive system
Where in the cell is DNA found?
A) The membrane B) The endoplasmic reticulum C) The nucleus D) The chromosomes E) c, d
What are some healthy sources of protein that you would incorporate into your daily diet? Would these protein sources be acceptable for vegetarians as well?
The chemistry of selenium is similar to that of ____.?
A) ?phosphorus B) ?sulfur C) ?chloride D) ?bromine