dxtxpx
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Contrast media can be injected into blood vessels to reveal by xray the blood flow from 1 vessel to another. In the hemocorial human placenta, a contrast dye is injected into either the uterine artery or the umbilical vein and 10 seconds later, the dye is located by radiography
Q 1) The vascular space most intensely labeled immediately after injection of contrast medium into the uterine artery is
a) umbilical artery
b) umbilical vein
c) capillaries in chronic villi
d) intervillous space
Q 2) the vascular space most intensly labeled immediately after injection of contrast medium into the umbilical vein is the
a) inf vena cava
b) ductus venosis
c) ductus arteriosus
d) umbilical artery
e) sup vena cava
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| asmi
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1.A :?:
2.A
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| dxtxpx
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your answer for Q2 is correct
Try Q1 again
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| asmi
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ITS D
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| dxtxpx
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yes 1)d
2)a 
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