Phagocytic cells of the alveolus are the
A. alveolar macrophages.
B. alveolar type I cells.
C. alveolar type II cells.
D. squamous alveolar cells.
E. septal cells.
Answer: A
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Arrange the following events of coagulation in proper sequence. (1) prothrombin ? thrombin (2) fibrinogen ? fibrin (3) activation of factor XII (4) formation of prothrombinase
A. 4, 3, 1, 2 B. 2, 4, 3, 1 C. 3, 4, 1, 2 D. 3, 2, 4, 1 E. 1, 2, 3, 4
Which condition listed is a sex chromosome aneuploidy characterized by at least 3 X chromosomes (XXX)?
a) Emesis gravidarum b) Metafemale syndrome c) Turner's syndrome d) Lethal gene e) Klinefelter's syndrome
What are cell exons and introns?
What will be an ideal response?
Which of the following statements about oxytocin is TRUE?
A. Oxytocin's main function is to increase the rate of respiration. B. Target cells of oxytocin have receptors for the hormone in their nucleus. C. Oxytocin is secreted by the anterior pituitary gland. D. Oxytocin is synthesized in the hypothalamus. E. Oxytocin keeps uterine smooth muscle from contracting, so it prolongs pregnancy.