Which of the following are cells of the alveoli that produce surfactant?
a) Type I alveolar cells
b) Type II alveolar cells
c) Type III alveolar cells
d) Surface cells
e) Macrophages
b
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One reason why protein synthesis is important is
A. proteins encode DNA sequences. B. proteins release energy for metabolic reactions. C. the diet does not provide the building blocks of protein. D. enzymes are proteins and enzymes are essential to metabolism.
The "bare area" within the thorax refers to:
A) a deviation in the left sternal reflection of the pleural that facilitates needle puncture of the pericardial cavity without penetration of the left lung or pleural cavity. B) a deviation in the right sternal reflection of the pleural that facilitates needle puncture of the pericardial cavity without penetration of the right lung or pleural cavity. C) a deviation in the right costal reflection of the pleural that facilitates needle puncture of the liver without penetration of the right lung or pleural cavity. D) the area of the heart that is in direct contact with the sternum. E) an area of continuity between both pleural cavities and the heart.
The pia mater is the
A) toughest and thickest of the meninges. B) outermost covering over the brain, but not the spinal cord. C) innermost of the meninges. D) menix that appears "webby" and contains cerebrospinal fluid. E) All of the answers are correct.
The basic reflex motor patterns related to eating and drinking are controlled by which region of the brain?
A) thalamus B) cerebral cortex C) midbrain D) hypothalamus E) pons