Radiation of cancer:
A) disrupts DNA. B) disrupts cellular replication.
C) both A and B. D) neither A nor B.
C
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Upper motor neurons in the spinal cord control:
a. Nerves that connect to muscles b. Sensory regions of the brain c. Language centers d. Emotional regions
Health Professions
In a patient experiencing a myocardial infarction, a medication that reduces afterload is beneficial because it:
A) reduces the workload of the heart, reducing myocardial oxygen consumption. B) reduces the blood flow to unnecessary areas, redirecting blood to the heart. C) improves the stroke volume of blood ejected from the heart by also reducing preload. D) prolongs the Q-T interval, thereby allowing time for complete atrial contribution to the ventricles.
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