Uncontrolled contractions of the heart ventricle that are often associated with myocardial infarction are known as:
a. ventricular tachycardia
b. ventricular fibrillation.
c. ventricular shock arrhythmias.
d. atrial fibrillation.
e. complete heart block.
b
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Longtitudinal, circular and diagonal muscles are needed to facilitate contraction and expansion of the
A) stomach. B) epiglottis. C) mouth. D) rectum.
When the body achieves physical maturity, growth:
A) ceases and cells immediately begin to die. B) continues, but at a slower rate. C) begins to accelerate rapidly. D) ceases and the body enters a phase of maintenance.
Under CDC guidelines, which of the following patients would be diagnosed as having AIDS?
a. Patient with CD4+ count of 300 cells/uL and oral candidiasis. b. Patient with CD4+ count of 600 cells/uL and lymphadenopathy. c. Patient with CD4+ count of 190 cell/uL and cytomegalovirus infection. d. Patient with CD4+ count of 200 cells/uL and oral hairy leukoplakia.
As part of the antioxidant enzyme catalase, which of the following helps promote the elimination of hydrogen peroxide from the body?
A. magnesium B. manganese C. iodine D. iron