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Question
All of the following have an enterohepatic circulation EXCEPT
A. penicillin.
B. cholesterol.
C. tetracycline.
D. bilirubin.
Answer
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B. cystic fibrosis
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A. progesterone
B. prostaglandin
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arteries
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B. decreased, K+
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Cells synthesizing hydroxyapatite in bones are termed as
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B. osteoclasts.
C. osteocytes.
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Bone resorption is produced by the action of _____________, which return bone calcium and phosphate to the blood.
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