Respiratory distress syndrome in newborns is caused by
A) lack of a respiratory membrane. B) high oxygen concentration.
C) low oxygen concentration. D) lack of surfactant.
D
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If humans administered a physiological dose of ufo-epi responded to the chemical, which of the following would indicate ufo-epi is an epinephrine agonist?
An alien retrieved alive from a crashed UFO has had a thorough medical examination. A hormone with a distinct but similar structure to epinephrine has been isolated, and named ufo-epi. A) increase in fatty acids in the blood B) decreased heart rate C) constriction of respiratory tubes D) localized sweating E) hyperglycemia (high blood glucose)
A network of small arteries called the ___________ provides a blood supply to the tunica externa of very large vessels
A. vasa vasorum B. companion vessels C. distributing arteries D. fenestrated arteries E. thoroughfare channels
Which type of hair forms the beard on the faces of males?
A. Terminal B. Nonpigmented C. Vellus D. Lanugo E. Pilus
Cells supporting neuron cell bodies in ganglia are termed ________.
A. satellite cells B. Schwann cells C. astrocytes D. ependymal cells