A 4-year-old child accidentally aspirates a small marble with a diameter of 0.8 mm. Where in the lung is the toy most likely to be found?
A. bronchus
B. trachea
C. bronchioles
D. alveolus
ANS: C
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Which of the following is one of the major functions of the pons?
A) breathing B) hunger C) thirst D) consciousness
Where is the highest concentration of bicarbonate ion found?
A. Lymph B. Interstitial fluid C. Intracellular fluid D. Plasma
The posterior communicating arteries connect the
A. internal carotid arteries and posterior cerebral arteries. B. middle cerebral arteries and posterior cerebral arteries. C. posterior cerebral arteries and anterior cerebral arteries. D. middle cerebral arteries and anterior cerebral arteries.
If the fatty acid portion of a fat molecule has ten double covalent bonds, the fat is said to be ________.
A. hydrogenated B. disaturated C. saturated D. monounsaturated E. polyunsaturated