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Home Q & A Board Biology-Related Homework Help Cell Biology
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slapaburger slapaburger
wrote...
6 years ago
Congenital heart defects can cause a right hearttoleft heart shunting of blood that results in increased:
 
  A) Pulmonary blood volume
  B) Right ventricle workload
  C) Unoxygenated blood flow
  D) Right atrial blood volume
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wrote...
#1
6 years ago
Ans: C
Feedback:
Right-to-left shunts transfer unoxygenated blood from the right side of the heart to the left side, diluting the oxygen content of blood that is being ejected into the systemic circulation and causing cyanosis. Left-to-right shunts cause recycling of blood through the pulmonary vessels and the right side of the heart, causing increased volume and workload of the right side of the heart and pulmonary circulation.
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