Ch.13/MED 126: Word Scramble
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Question | Answer |
The site of exchanges of materials between fetal blood and maternal blood is the? | Placenta |
Name the kinds of materials exchanged between fetal blood and maternal blood: | Oxygen-CO2, nutrients, and waste products |
Name the mechanism (processes) of exchange between fetal blood and maternal blood: | Diffusion and active transport |
The fetus is connected to the placenta by the umbilical cord, which contains two ________ and on __________. | Umbilical arteries, umbilical vein |
The umbilical arteries carry blood from the _______ to the ______. | Placenta, fetus |
Within the body of the fetus, the umbilical vein branches into two vessels. One branch takes blood to the fetal liver. The other branch is called the _______ and takes blood to the __________, which returns blood to the right atrium of the fetal heart. | Ductus venosus, inferior vena cava |
Within the fetal heart, the ________ is an opening in the interatrial septum that permits some blood to flow from the ____ atrium to the _____ atrium. | Foramen ovale, right, left |
Just outside the fetal heart, the ductus arteriosus is a short vessel that permits blood to flow from the _________ to the ______. | Pulmonary artery, aorta |
State the purpose of the ductus arteriosus? | Permits most fetal blood to bypass the lungs |
After birth, the ductus venosus dilates/constricts _______ and becomes non-functional. | Constricts |
The foramen ovale is opened/closed ______ by a flap on the left side, and the ductus arteriosus dilates/constricts _________? | Closed, constricts |
The umbilical artery has 2 arteries (_______-away from the fetus) and 1 vein (________- toward the fetus.) | Deoxygenated, oxygenated |
What is the hole between the atria in the interatrial septum called? | Foramen ovale |
After birth, vessels become nonfunctional and become? | Ligaments |
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laceylake
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