The vertebral arteries join together to form the
A. posterior communicating artery.
B. posterior cerebral artery.
C. common carotid artery.
D. basilar artery.
Answer: D
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Epithelial cells usually have
A) a basal lamina. B) unevenly distributed organelles. C) an exposed apical surface. D) apical and basal plasmalemmas with different associated proteins and functions. E) All of the answers are correct.
Germinal centers are the sites of
A. fluid production. B. increased blood flow to the lymph nodes. C. increased flow of lymph from infected tissues. D. entrance of lymph into lymph nodes. E. proliferation of lymphocytes in the lymph nodes.
Which type of burn appears white or black with no immediate pain?
A. First-degree B. Second-degree C. Fourth-degree D. Partial-thickness E. Third-degree
Blood transfusions between incompatible blood types results in:
A) type I, or immediate, hypersensitivity. B) type II, or antibody-mediated, hypersensitivity. C) type III, or immune-complex mediated, hypersensitivity. D) type IV, or delayed-type, hypersensitivity.