Which layer of the vessel wall facilitates vasoconstriction and vasodilation?
A. The tunica media
B. The tunica sclerosa
C. The tunica externa
D. The tunica adventitia
E. The tunica interna
Answer: A
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The placenta performs the functions of all of the following systems for the fetus except
a. digestion. b. respiration. c. circulation. d. kidneys. e. hormone secretion.
Which result from activation of the renin-angiotensin system? select all that apply.
a) increased blood pressure b) increased water retention c) decreased glomerular filtration d) vasoconstriction e) decreased water reabsorption
Which type of nephron is essential for water conservation and concentrated urine production?
A) juxtamedullary nephrons B) cortical nephrons C) medullary nephrons D) pyramidal nephrons E) pelvic nephrons
True or False? The application of pressure creates a slight electrical charge on osteoblasts.
Answer the following statement true (T) or false (F)