Thursday, May 9, 2013

Circulation System Review hnggggggg



Pulmonary:
- pulmonary arteries and pumonary veins.
- transport deoxygenated blood to the lungs, and then take oxygenated blood to the heart.
- pulmonary arteries take deoxygenated blood to the lungs to be oxygenated, pulmonary veins take oxygenated blood back to the heart.

Systemic:
- aorta, superior vena cava, and inferior vena cava.
- heart pumps oxygenated blood through the aorta to be pumped through the rest of the body. 
- deoxygenated blood from the body comes in through the inferior and superior vena cavas to be pumped to the lungs for oxygenation.

Arteries:
- thicker walls
- carry oxygenated blood

Veins:
- thinner walls
- have valves that prevent blood backflow
- carry deoxygenated


Blood Flow:
1) carotid artery - oxygenated
2) jugular vein - deoxygenated
3) superior vena cava - deoxygenated
4) right atrium, av valve - deoxygenated
5) right ventricle - deoxygenated
6) pulmonary semilunar valve, pulmonary trunk/artery - deoxygenated
7) lungs - deoxygenated, gets oxygenated
8) pulmonary veins - oxygenated
9) left atrium, av valve - oxygenated
10) left ventricle - oxygenated
11) aortic semilunar valve, aorta - oxygenated

Fetal Circulation:
Foramenovale - a hole in the fetus heart between the right and left atrium, where blood moves through to bypass the lungs because they are not needed for a fetus in the womb.

Ductus Arteriosis - hole between aorta and pulmonary trunk for blood to, again, bypass the lungs.

Ductus Venosus - oxygen rich blood from the placenta goes through the ductus venosus and in through the inferior vena cava to be pumped through the heart.

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