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Question
Quiet expiration is caused by
A. contraction of the external intercostals.
B. contraction of the internal intercostals.
C. lung recoil and increased intrapulmonary pressure.
D. contraction of the scalenes.
Answer
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DHEAS travels from the fetal adrenal cortex to the placenta where it is converted into oxytocin.
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arteries
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Cells synthesizing hydroxyapatite in bones are termed as
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B. osteoclasts.
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