Unit 9- Fetal Circulation System Flashcards
1
Q
Oval openings:
A
- An opening between the two atria
- it is covered by a flap of tissue that acts like a valve
- blood flows directly from the right atrium to the left atrium
- Bypassing the lungs which do not work yet
2
Q
The arterial duct is a connection between…
A
The pulmonary artery and the aorta
3
Q
Umbilical vein
A
Takes nutrients (oxygen, glucose and amino acids) to the fetus from the placenta
4
Q
Venous duct function
A
Blood coming from the umbilical vein passes directly to the vena cava through the Venosus duct allowing blood to bypass the liver
5
Q
Blood flows from the pulmonary artery to the aorta, bypassing the lungs
A
Arterial duct
6
Q
The venous duct is a connection between….
A
The umbilical vein and the vena cava
7
Q
Umbilical artery
A
Takes waste (carbon dioxide and urea) to the placenta
8
Q
What are the four features not present in the adult system that are present in the fetal system
A
Oval openings,
Arterial duct
Umbilical artery and vein
Venous duct
