Mr. Schmitzer has pulmonary fibrosis in which the elastic tissue of his lungs is replaced with dense irregular collagenous connective tissue. His condition primarily affects:
A) surfactant production. B) airway resistance.
C) alveolar surface tension. D) pulmonary compliance.
Answer: D
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Hydrogen bonds are important for all of the following except
A. helping atoms give up or receive electrons. B. helping hold DNA strands together. C. producing surface tension in water. D. helping hold a protein structure together.
New membrane is being added continually by the ________, resulting in membrane turnover at the surface of the cell.
Fill in the blank(s) with the appropriate word(s).
Of the following muscles of the thigh which one has its origin on the ilium, sacrum and coccyx and its insertion on the posterior surface of the femur?
A) gluteus maximus B) adductor magnus C) biceps femoris D) gluteus minimus
Moving your arm away from your torso is known as ________
A) abduction B) flexion C) adduction D) circumduction