Match the term with the appropriate description.A. A bulge (a weak spot) in the artery wallB. Degenerative changes in arteriesC. An overstretching of the veins of the lower extremitiesD. Inflammation of the veinsE. Small vessels that supply nutrients to large arteriesVasa vasorum
Fill in the blank(s) with the appropriate word(s).
Answer: E
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Irregular and unpredictable vasoconstriction in the fingertips and toes (such as occurs in Raynaud's syndrome) would most likely be caused by
A) both local and systemic defects in sympathetic response controlling muscle tone in vessel walls. B) insufficient vasomotor responses by the sympathetic nervous system. C) defective control of blood pressure by both the sympathetic and parasympathetic divisions. D) irregular and unpredictable responses by the parasympathetic division. E) None of the answers are correct.
Oxytocin
a. is an extremely potent uterine muscle stimulant. b. is involved in a positive feedback cycle during parturition. c. is produced in the hypothalamus. d. both (a) and (b) above. e. all of these answers.
If pleural pressure changes from –3 cm H2O to –7 cm H2O as a subject breathes from FRC to FRC +1 L, what is the compliance of the lung?
A. 0.1 L/cm H2O B. 4 cm H2O/L C. 0.25 L/cm H2O D. 10 cm H2O/L
Where is the endothelium located?
A) basal lamina B) tunica intima C) tunica externa D) tunica media