Atropine causes the pupil of the eye to dilate by blocking the effect of muscarinic receptors. This means atropine is a/an
A. beta-adrenergic blocking agent.
B. alpha-adrenergic blocking agent.
C. ganglionic blocking agent.
D. parasympathetic blocking agent.
E. parasympathomimetic agents.
Answer: D
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Immature, undifferentiated cells that can divide to replace lost or damaged cells are called
a) stem cells. b) parenchymal cells. c) fibrotic cells. d) granulocytes. e) agranulocytes.
Cardiac muscle cells obtain energy almost exclusively through
A) anaerobic pathways. B) protein stores. C) glycolysis. D) aerobic respiration. E) the Krebs cycle.
A person walks into the emergency room with rapid and shallow breathing and a feeling of light-headedness. A blood test shows high levels of bicarbonate ions and a pH of 7.34. What could explain these symptoms?
A) metabolic acidosis with respiratory compensation B) acidosis with no compensation C) respiratory acidosis with renal compensation D) metabolic alkalosis with respiratory compensation E) respiratory alkalosis with renal compensation
A measure of antibody level in the plasma is
A) the primary response.
B) the secondary response.
C) antigen concentration.
D) body temperature.
E) the antibody titer.