Compare:
Pulmonary circulation includes sending blood to the lungs.
Starts in the RA with deoxygenated blood, to the RV, and then to the pulmonary trunk, pulmonary arteries, and then to the pulmoary capillaries (where the blood is oxygenated and the Carbon Dioxide is removed). Oxygenated blood returns to pulmonary vein via LA.
Systematic circulation includes sending blood to the body.
Starts in the LA with oxygenated blood, to the LV, and then to the aorta branching off into capillaries (gas exchange Carbon Dioxide in blood, Oxygen in cells). Deoxygenated blood enters the superior and inferior vena cava via the RA.
Veins mainly carry deoxygenated blood. They are stretch-able, and hold the most ammount of blood (acts as a resevoir). Carry blood to the heart, from the body.
Arteries mainly carry oxygenated blood. They carry blood away from the heart to the body.
Circulation:
Oxygenated blood starts at the carotid artery
Deoxygenated in the head
Deoxygenated blood moves down jugular vein.
Deoxygenated blood in through inferior vena cava (some from superior vena cava)
Enters the right atrium
Passes the right AV Valve (tricuspid)
In to the Right Ventricle
Up through the the pulmonary trunk/pulmonary semi-lunar valve
Deoxygenated bood leaves the heart via pulmonary artery
Lungs make the blood oxygenated
Blood enters pulmonary vein
Down to the left atrium
Passes the left AV Valve (Bicuspid)
Down left ventricle
Through the Aortic Semi-Lunar valve
Out through the Aorta!
Fetal Circulation:
1. The Foramen Ovale: hole between toe RA and the LA, serves as a povider of oxygen for the baby from the mom, obviously the baby cannot take in oxygen so the bypasses the lungs
2. Ductus Arteriosus: between pulmonary trunk and aorta, prevents blood from going into the lungs
3. Ductus Venosus: umbilical vein attaches to inferior vena cava, source of major blood flow
No comments:
Post a Comment