The ________ valve (letter A) prevents blood from flowing back into the right ventricle. It is called a semilunar valve because its cusps are shaped like a half moon.
Fill in the blank(s) with the appropriate word(s).
pulmonary
The pulmonary semilunar valve prevents blood from flowing back into the right ventricle.
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Which hormone is released by the kidney to stimulate the production of red blood cells by bone marrow?
A) Angiotensin II B) Renin C) Angiotensin D) Erythropoietin
Dental patients taking corticosteroids:
A. should increase their dosage by at least 20 mg. B. should reduce their dosage by at least 20 mg. C. should be administered oxygen via nasal cannula during treatment. D. do not require additional steroids unless they are phobic.
John Jones had a CT scan of the thyroid. The results on the report state:
Infarction of the thyroid and hemorrhage. Select the appropriate ICD-9-CM code(s) using an ICD-9-CM code book.
What are metallic nitrates?
a. Compounds composed of metallic ions and the nitrite ion (NO2-) where the nitrogen atom assumes an oxidation number of +3 b. Compounds composed of metallic ions and nitrate ion (NO3-), where the nitrogen atom assumes an oxidation number of +5 c. Compounds composed of metallic ions and the nitrite ion (NO2-) and nitrate ion (NO3-), respectively d. Compounds composed of metallic ions and the nitrite ion (NO2-) and nitrate ion (NO3-) are bonded to each other