00:02
Hello, my dear students.
00:04
The concept given in the question is nothing but double circulation of blood in human beings or human system.
00:17
Yes.
00:18
Now what is required for us is to find out it is which gas or what gas which is found abundantly in the blood taken by the veins into the heart.
00:36
Yes, this is what we need to find out.
00:39
Let us get into knowing an image so that i can go into the deeper explanation.
00:48
So my dear friends, according to the image if we see the circulatory system or the blood circulatory system in humans include the organs like lungs, heart and the vessels.
01:16
Capillaries.
01:19
Okay? the vessels are of two types, nothing but artery, arteries and veins.
01:30
Or vein.
01:32
Now artery carries blood away from heart.
01:39
Yes? okay? whereas vein carries the blood towards or into the heart.
01:55
Okay? this isn't one type of circulation what you can see.
01:59
In the second way if you see, veins carry blood from the tissues to the heart.
02:15
Yes, whereas arteries carries blood, okay, away from the heart to the tissues.
02:31
This is why we said double circulation is two such jobs.
02:34
What this artery and vein is doing.
02:37
Now let us see it in the image.
02:39
As i told you, there is involvement of lungs, heart, vessels, nothing but what you see it.
02:45
The artery, vein, okay? again, the artery and vein.
02:49
Yes, and you also see the involvement of capillaries.
02:53
Capillaries is the junction where there is meeting point of the vein and artery.
02:59
Okay, but let us see the first type of circulation here.
03:03
This one i will explain okay so the deoxygenated blood so whatever is in blue here is the one which is poor of oxygen and whatever is red here the blood has a lot of oxygen in it now from the tissues the vein the main vein called as venakava takes the deoxygenated blood or the blood which has very less oxygen from the tissues to heart it pumps okay yes.
03:34
So this is done.
03:35
This we have explained.
03:39
Yes.
03:41
Now the next one after it is being pumped inside the heart.
03:46
From the heart it is carried to the lungs for oxygenation by the artery.
03:54
Yes...