00:01
Which of these two vessels are least similar in gas contents? the pulmonary vein and the aorta, the pulmonary vein and the vena cava, the inferior vena cava and the superior vina cava, the pulmonary artery and the vina carva.
00:17
So i'm going to quickly note down what a cycle of the cardiovascular system looks like.
00:23
So let's start with deoxygenated blood in the right ventricle.
00:27
It goes to the pulmonary artery.
00:31
It goes from there to the lungs, where it is oxygenated, and then the pulmonary vein back to the heart.
00:39
So it goes to the left atria and then the left ventricle.
00:44
So this is the pulmonary circuit.
00:47
And after the lungs, so from this point onwards, we have oxygenated blood.
00:54
Low -income dioxide content, high in oxygen content.
00:58
From the left ventricle we go into the systemic circuit.
01:02
So we go from the left ventricle to the aorta, and that goes to the various tissues, and that comes back along the veins, to the main veins, the vaneacabla.
01:15
And that goes back into the right atrium, and we start all over again.
01:24
So after the tissues, so after this point, we have deoxygenated high carbon dioxide blood.
01:32
So those are the points that are worth remembering.
01:34
The lungs add the oxygen, the tissues take it out.
01:38
Now let's look at our pairs of vessels...