What begins to develop about 11 days after conception, and is the sole source of fetal nutrition from the end of week 12 until birth?

A. The yolk sac
B. The placenta
C. The amnion
D. The trophoblast
E. The blastocyst


B. The placenta

Anatomy & Physiology

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On physical exam, it was determined that the dog had ________________________________ (difficulty swallowing)

Fill in the blank(s) with correct word

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Myelin forming cells in the peripheral nervous system are called ____________________ cells

Fill in the blank(s) with correct word

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Respiratory acidosis can be a result of ______

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