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Old 10-31-2011
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Heart Heart Part not from the Mesoderm!

A 15-year-old high school basketball player collapses during a game. He is brought to the emergency room where he is intubated and brought to the intensive care unit. He is noted to have a congenital defect in his heart. Which of the following portions of the heart is not derived from the mesoderm?

A. Aorticopulmonary septum
B. Left ventricle
C. Right atrium
D. Right ventricle
E. Left atrium
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Old 10-31-2011
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A. Aorticopulmonary septum may be
because mesoderm defect cause cvs defect
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The correct answer is A.
The heart tube originates from the mesoderm layer, but the aorticopulmonary septum originates from neural crest cells.
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Old 10-31-2011
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A 15-year-old high school basketball player collapses during a game. He is brought to the emergency room where he is intubated and brought to the intensive care unit. He is noted to have a congenital defect in his heart. Which of the following portions of the heart is not derived from the mesoderm?
A. Aorticopulmonary septum
B. Left ventricle
C. Right atrium
D. Right ventricle
E. Left atrium
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Aorticpulmonary septum a
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Old 11-01-2011
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the correct answer is a
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Cardiovascular-, Embryology-, Step-1-Questions

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