These cells contain histamine and are the least numerous of the circulating white blood cells.
A. Monocytes
B. Eosinophils
C. Neutrophils
D. Basophils
Answer: D. Basophils
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In the fast block to polyspermy, binding of sperm opens up ________ channels, which depolarizes the egg membrane and ________
A) Na+; prevents the entrance of Ca2+ B) Na+; prevents the entrance of any more sperm C) Ca2+; prevents the entrance of more Na+ D) Na+; prevents the entrance of more Na+ E) Ca2+; prevents the entrance of any more sperm
During aerobic exercise in vertebrates
A) Sympathetic stimulation of heart decreases. B) Blood pressure changes only slightly. C) Higher brain centers are not involved. D) The activity of the parasympathetic nervous system increases.
A compression or burst fracture of the cervical spine would MOST likely occur following:
A) a direct blow to the occipital region of the skull. B) rapid acceleration following a motor vehicle crash. C) axial loading after a patient falls and lands feet first. D) a significant fall in which the patient lands head first.
An increase in plasma levels of ________ causes a yellowish appearance of the skin and the whites of the eyes. This condition is called ________.
A) biliverdin : jaundice B) bilirubin : renal anemia C) bile : pernicious anemia D) bilirubin : jaundice E) bilirubin : hemostasis