The pseudostratified columnar epithelium of the bronchi in smokers may transform into stratified squamous epithelium. This is an example of ________.
A. neoplasia
B. hyperplasia
C. atrophy
D. metaplasia
E. differentiation
Answer: D
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If a needle needs to be recapped, should it be done using the one-hand technique or the two-hand technique?
What will be an ideal response?
Compare oxyhemoglobin with deoxyhemoglobin
A) Oxyhemoglobin is hemoglobin whose iron has bound carbon dioxide. Deoxyhemoglobin is hemoglobin whose iron has bound oxygen. B) Oxyhemoglobin is hemoglobin whose iron has bound oxygen. Deoxyhemoglobin is hemoglobin whose iron has not bound oxygen. C) Oxyhemoglobin is hemoglobin whose iron has not bound oxygen. Deoxyhemoglobin is hemoglobin whose iron has bound oxygen. D) Oxyhemoglobin is hemoglobin whose iron has bound both oxygen and carbon dioxide. Deoxyhemoglobin is hemoglobin whose iron has bound oxygen only. E) Oxyhemoglobin is hemoglobin whose iron has bound oxygen only. Deoxyhemoglobin is hemoglobin whose iron has bound both oxygen and carbon dioxide.
What is the role of ATP in the sliding filament theory?
A. Breaks the link between actin and myosin B. Energizes the myosin cross-bridge C. Both energizes the myosin cross-bridge and breaks the link between actin and myosin.
In the figure showing an anterior view of the veins, number 4 indicates the
A. left internal jugular vein. B. left cephalic vein. C. left brachiocephalic vein. D. left common iliac vein. E. left basilic vein.