Which of these is most vulnerable to irreversible damage caused by a very loud noise?
A. Cochlear hair cells
B. Ossicles
C. Tectorial membrane
D. Fibers of the cochlear nerve
E. Tympanic membrane
Answer: A
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Which of the following phrases is least likely to be used in describing erythrocytes?
A. Cells can change shape B. Biconcave cells C. Nucleus is centrally located D. Main role is transporting blood gases E. Cytoplasm contains hemoglobin
The best place to make an "emergency" airway is through the
A. cricothyroid membrane. B. thyrohyoid membrane. C. trachea above the thyroid isthmus. D. trachea at the level of the thyroid isthmus. E. trachea below the thyroid isthmus.
Which of the following vessels drains into the superior vena cava?
A) lumbar vein B) azygos vein C) hepatic portal vein D) femoral vein
What protein is the most important buffer in erythrocytes?
A) Gamma globulin B) Fibrinogen C) Albumin D) Myoglobin E) Hemoglobin