What can help prevent clots from forming in undamaged blood vessels?
A. Smooth endothelium of blood vessel walls
B. Prothrombin activator
C. Heparin from basophils and mast cells
D. Both heparin and a smooth endothelium are correct.
Answer: D
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Which of the following would have the lowest pitched voice?
A) a person with thin false vocal cords B) a person with thin true vocal cords C) a person with thick false vocal cords D) a person with thick true vocal cords E) None of the answers are correct.
Pulsating exophthalmos is associated with:
A) tear of the lacrimal artery. B) tear of the inferior ophthalmic vein. C) arteriovenous fistula within the cavernous sinus. D) rupture of the pterygoid venous plexus. E) section of the oculomotor nerve.
Which of the following does not occur as a compensation for hemorrhage?
a. Shift of fluid from the interstitial fluid into the plasma b. Reduced urinary output c. Increased capillary permeability d. Increased cardiac output e. Increased synthesis of plasma proteins
The right and left cerebral hemispheres are separated from each other by ________.
A. many sulci B. the brainstem C. the longitudinal fissure D. many gyri E. the corpus callosum