A tissue transplant from an animal to a human is a(n)
A. autograft.
B. syngenetic graft.
C. allograft.
D. heterograft.
E. homograft.
D
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Why is ventricular fibrillation fatal?
A) Ventricular fibrillation is fatal because the ventricles quiver and do not relax long enough to be filled with blood by the atria. B) Ventricular fibrillation is fatal because the ventricles quiver and do not pump blood to the systemic circulation. C) Ventricular fibrillation is fatal because the ventricles do not relax long enough for the coronary vessels to fill with blood for the coronary tissue to receive oxygen and nutrients. D) Ventricular fibrillation is fatal because the heart is beating to an ectopic pacemaker and the rhythm is irregular. E) Ventricular fibrillation is fatal because the heart rate slows significantly and blood flow and pressure decreases.
Choose the term that does not belong with the others.
A. Juxtaglomerular apparatus B. Macula densa C. Juxtaglomerular cells D. Afferent arteriole E. Glomerulus
Hypertrophy is an increase in
A. muscle endurance due to an increase in mitochondria. B. muscle endurance due to increased glycogen storage. C. muscle size due to an increase in the size of myofibrils. D. muscle size due to mitosis of skeletal muscle fibers.
Sam is an accountant who is especially busy during tax season. By the end of each day he complains of shoulder stiffness and tightness as well as some upper back pain. What might be Sam’s problem and how could he prevent the discomfort?
What will be an ideal response?