As the result of an asthmatic attack,
A. ventilation exceeds the ability of blood to pick up oxygen.
B. ventilation is inadequate to oxygenate blood.
C. pulmonary blood flow is reduced while ventilation remains normal.
D. the surface area available for gas exchange increases.
E. bronchioles dilate.
B
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Progesterone is produced by the:
A) corpus luteum B) hypothalamus C) seminiferous tubules D) pituitary gland E) oviduct
Thick skin contains
A. seven epidermal strata and lacks sweat glands. B. five epidermal strata and lacks sweat glands. C. four epidermal strata and lacks sebaceous glands. D. six epidermal strata and lacks sweat glands. E. five epidermal strata and lacks sebaceous glands.
A male has ________ chromosomes, while a female has ________ chromosomes.
A. XY; XX B. XX; XY
A doctor tells her nursing students that it is important to monitor patients' blood pressure when they are receiving verapamil (a calcium channel blocker). Why?