Which of the following are released by damaged tissues and function as intercellular autocrine or paracrine signals?
A.
Aldosterone
B.
Epinephrine
C.
Erythropoietin
D.
Norepinephrine
E.
Prostaglandins
E
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Which bone marking does not serve as an articulating surface?
A. Head B. Epicondyle C. Condyle D. Facet E. Trochlea
The bicarbonate system is composed of H2CO3 and HCO3-. Which statement accurately describes these molecules?
A. H2CO3 and HCO3- are both weak acids. B. H2CO3 is a weak acid, and HCO3- is a weak base. C. H2CO3 is a weak base, and HCO3- is a weak acid. D. H2CO3 and HCO3- are both strong bases. E. H2CO3 is a strong base, and HCO3- is a weak acid.
True or False? Only cells of the testes or ovaries undergo meiosis, which produces four haploid (n) cells with 23 chromosomes each.
Answer the following statement true (T) or false (F)
If a patient's tricuspid valve was leaking during systole, what would happen?
A) regurgitation back into the right atrium B) regurgitation back into the superior vena cava C) regurgitation back into the left atrium D) regurgitation back into the aorta E) regurgitation back into the pulmonary trunk