Soon after birth, what happens to the foramen ovale?
A. It forms the ductus ateriosus.
B. It only allows blood to flow between the left and right ventricles.
C. It forms the ligamentum arteriosum.
D. It closes to form the fossa ovalis.
D. It closes to form the fossa ovalis.
Anatomy & Physiology
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Identify the aortic arch in the figure
A) A B) B C) C D) D
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Vaccinations involve exposure to an antigen to elicit:
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Anatomy & Physiology