What are the two possible causes of lower alveolar PO2? Give examples of each.
What will be an ideal response?
1. The composition of the inspired air is abnormal. Altitude affects oxygen content of air.
2. Alveolar ventilation is inadequate. Pathological factors include increased airway resistance (asthma), decreased lung compliance (fibrosis), and overdoses of drugs or alcohol.
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What is the anatomical term for the calf?
A) crural B) plantar C) calcaneal D) sural E) tarsal
Intermolecular forces
A. are found within molecules. B. evenly distribute electrical charge among all atoms in a sample. C. form dissociated ions. D. separate atoms and ions from one another. E. are electrostatic attractions between different molecules.
Which of the following is NOT pushed out of the arterial end of a capillary?
A. Blood cells B. Glucose C. Amino acids D. Water
The "ABCD rule" for recognizing early signs of malignant melanoma refers to which of the following characteristics of the lesion?
A. Area, border irregularity, color, and density B. Aspect, brightness, color, and distance C. Asymmetry, brightness, color, and diameter D. Asymmetry, border irregularity, color, and diameter E. Aspect, border irregularity, color, and distance