The period of gestation when the basic components of each of the major organ systems appear is the ________ trimester(s).
A) first
B) second
C) third
D) first and second
E) second and third
A) first
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How is alveolar air different than inspired air?
A. Alveolar air has a higher PN2 than inspired air. B. Alveolar air has a lower PCO2 than inspired air. C. Alveolar air has a higher PH2O than inspired air. D. Alveolar air has a higher PO2 than inspired air.
Which of the following is not a tropic hormone?
a. thyroid stimulating hormone b. prolactin c. adrenocorticotropic hormone d. luteinizing hormone
Which of the following events result in the first heart sound?
A) The AV valves close. B) The semilunar valves open. C) The AV valves open. D) The atria contract. E) The semilunar valves close.
An elevated hematocrit value is termed
A) anemia. B) polycythemia. C) hyperchromic. D) macrocytic. E) reticulocytosis.