00:00Life, life, life, life, life, life, life
00:06And here is life, beautiful life, eager to blossom.
00:13The world invites us to new dawns.
00:19He gives us tears, singing hands
00:23And the sun that dazzles us
00:27The crisp air enchants us
00:31It fills us with joy and life
00:34Life, life, life, life, life, life, life
00:41Life, life, life, life, life
00:44Blood circulation
00:53It has only been three short centuries since people have believed in it.
00:57Previously, the Belgian anatomist Andreas Vézal had dared to speak about it first, in 1543.
01:05As a result, he was sentenced to be burned alive
01:10He narrowly escaped the stake of the Inquisition thanks to his powerful friend Philip II of Spain.
01:18Ten years later, Michel Servais, a Spaniard, would in turn speak about blood circulation
01:23His mistake is not counting any monarchs among his associates, so he will perish at the stake.
01:28When William Harvey, an Englishman, decided in 1628 to explain the role of the heart and blood circulation, one
01:34laughs in his face
01:35At the University of Paris, fifty years later, its dean, the learned Guy Patin, teaches
01:44No gentlemen, not winter nor its theories, for as our master of all has demonstrated
01:49The great Greek anatomist Galen made it quite clear that blood does not circulate
01:54But obviously
01:55But of course, that's insane.
01:56Why did he come up with the idea?
01:57Without him resisting it
01:58And yet, it keeps going, this blood circulation propelled by the heart.
02:18And yes, my friends, you will soon realize it.
02:21The heart is a remarkable organ.
02:23Look, with the blood it sheds during a human lifetime, there would be enough to fill a cube of
02:26200 million liters
02:28And it's no bigger than a man's stitch, it's amazing!
02:40Ah yes, a fascinating organ, and you'll see, impressive.
02:44Magical rites are celebrated there.
02:46It's a little scary, but fascinating, you could say.
02:49It's a very long journey; imagine that we've come from the tips of our toes.
02:53But what can you do? They need our oxygen to function there too.
02:58And also the need to get rid of their combustion gases
03:01That's our role.
03:02Everything comes through the heart.
03:03We are sailing in a closed circuit
03:33I don't like carbon dioxide.
03:35I don't like it, it oppresses me.
03:56We have reached the end of the vena cava, the most important vein in the body.
03:59I advise you to close your hosts
04:01We are very close to the heart now.
04:10You can see that it's full
04:16And what is your mission, then?
04:38We have now arrived in the right atrium, one of the four chambers of the heart
04:45Admire the majesty of the place
04:49Our colleagues there are coming from the upper body
04:51From the head, from the arms
04:59Their path and the one we followed
05:01They bring all the blood from the body back into this compartment
05:04Without exception
05:05And from here, we go to the lung
05:07How do we get there?
05:08Come
05:10What is that loud, echoing noise?
05:12Look
05:16So, you understand about the noise?
05:18It's three tabs
05:19This is the tricuspid valve.
05:22That's the way we'll go in a little while.
05:25But come and take shelter!
05:30Otherwise, I'm warning you.
05:32We will be swept away when they open again
05:43Hold on tight!
06:10You see, on the other side is one of the lower rooms
06:14The right ventricle
06:15It's even more impressive there.
06:19Systole will occur shortly.
06:22Get ready, this time we won't be able to resist
06:24It's terrible, I'm scared.
06:27No, my little one.
06:27Millions of us do the same thing with every heartbeat.
06:31This is our life
06:32Ah, there we go, it's ours
06:37It's up to us
07:04Oh! Oh! Oh! Oh! Oh!
07:23No airlock! That's right, it's muting the big rapids!
07:30Look!
07:36Isn't it beautiful?
07:39Huh? Yeah.
07:41It's true, superb architecture and foolproof efficiency.
07:45Just think, these pillars will perform 3 billion beats over a lifetime.
07:493 billion heartbeats?
07:51Yes.
07:54Come quickly, let's try to park.
07:56Yeah, we'll have to see that.
07:57We just have time before another systole.
08:05Oh !
08:06Oh !
08:07Oh !
08:08Oh !
08:11Oh !
08:12Oh !
08:14Oh, oh!
08:18Oh !
08:30Oh !
08:35This time, it's going to be our turn. Are you ready, children?
08:38Yes, yes, yes, yes!
09:06Oh my god, I didn't even understand what was happening to me.
09:09Hey, you don't understand either?
09:11Without that, without that, it's true, isn't it?
09:14We couldn't go back, it was absolutely amazing.
09:18You see, the path is one-way, but don't worry, we'll soon return to the heart.
09:23The time it takes to go to the lungs and back is quick, it's just pulmonary circulation.
09:28Anyway, everyone knows I don't understand any of it, so...
09:31Oh, it's perfectly clear!
09:36Yes, you'll see how simple it is.
09:38Coming from the general circulation, that is to say, some from the feet or organs, others from the
09:42head,
09:42We arrived in the heart on the right.
09:45From there, we were propelled towards the lung to rid ourselves of our load and store oxygen.
09:53Then, we'll come back to the other side on the left so that the heart can send us to carry oxygen everywhere.
09:59the body.
10:00That's clear, isn't it?
10:01This is going to be a long haul, this little traffic jam.
10:04We travel 35 cm per second, you just have to do the math.
10:08Because of the small line, you…
10:15You don't have to.
10:29Oh, that's clear, that's clear.
10:31It's clear, it's clear!
10:34What you don't have next time, you only have a little later, you don't have
10:36what to do with the person.
10:41We collected all of this, it's yours.
10:47THANKS.
10:49You did the right thing.
11:02Oh!
11:06No, I advise you against doing that, sir. Wait.
11:12One minute, I'd still like to talk to you first.
11:14I'm not edible, believe me.
11:16Apparently, I have a very bad neck and I'm also indigestible.
11:25Hey there, wait a minute.
11:31Patrol 8 requests the central office.
11:33I repeat, the power plant.
11:34No, but wait, let me have the night.
11:37Don't disturb anyone, I'm coming.
11:57It's well done, it's well done, it's well done.
12:01I repeat.
12:02It's well done.
12:03It's well done.
12:11I repeat.
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18:57Don't you think it's a wonderful piece of engineering?
19:02And why shouldn't we do our work without heart?
19:05Because he alone has the strength to send us where we need to go.
19:09Without it, traffic stops and everything withers for lack of food.
19:14Do you understand?
19:15Me, I don't understand anything anyway. So?
19:18Oh no, you're not going to do that again.
19:38Our journey through the local traffic area comes to an end.
19:42Soon we will be back at the heart of it, on the left side this time, if I am not mistaken.
19:48I beg your pardon a thousand times, my dear, but if I am not mistaken in turn, I see there
19:51a client for me.
20:06Now, we have to go, children.
20:14And there you go!
20:17And there you go!
20:18And there you go!
20:44Emo, are you there?
20:45I'm here, Globine.
20:47Oh my God, I've never been so scared in my life.
20:50Wow! It's really great!
20:52Ah, that's great!
20:53Look, we're coming from there, from the right lung.
20:56And from there, other companions arrive, from the left lung.
20:59So, prepare to make the descent into the lower compartment, the left ventricle.
21:05This will be our last jump.
21:13Oh, oh, oh, oh, oh!
21:23Oh, oh, oh, oh, oh!
21:26It's good !
21:31Amuleux, isn't it?
21:32Oh yes, it's fabulous!
21:36We are in the most powerful of the four compartments of the heart.
21:40This is where we will depart from for the longest journey.
21:45This way!
21:52Oh !
21:53Oh !
21:54Oh !
22:11Oh !
22:12Oh !
22:17Oh !
22:19Oh !
22:20Oh !
22:21Oh !
22:38Hey, it was... it was...
22:41Beautiful and terrible, isn't it?
22:43That's it, yes.
22:44Actually, it's true.
22:45So.
22:46That's right.
22:47As you can see, the left ventricle is this time more powerful than the right.
22:52No, well, why?
22:53What do you mean, this time...?
22:54As I told you, it takes a lot more force to send us into the main traffic.
22:59It's a very long journey.
23:05It's full for now, it's all good.
23:07We won't go to the right arm this time.
23:20We will not go towards the brain either.
23:23Too bad, it would have been fascinating.
23:25We'll do it next time.
23:36Well, children.
23:39Here we go for the grand tour.
23:41The abdomen, the liver, the spleen, the intestines, maybe the legs.
23:45So, take heart and let's go.
23:55The heart is a fascinating organ.
23:58You'll see, we'll be there soon.
24:00But tell me, master, doesn't it ever rest at the mouth?
24:03No, it's not made for peace and quiet.
24:06It is made for enthusiasm, emotions, love.
24:09Finally, for everything that adds spice to life.
24:12Yes indeed, the heart is a fascinating organ.
24:18The heart, 10 cm by 15 cm.
24:21Weight, 300 grams.
24:24Flow rate, 5 liters of blood per minute.
24:278000 liters per day.
24:28More than 200 million litres during a human lifetime.
24:32The heart, 10 cm by 15 cm.
24:35Weight, 300 grams.
24:39Life, life, life, life.
24:41The soul and life flowing serenely.
24:45Let's take up the challenge.
24:48You busy my joy.
24:51Life, life, life, life, life, life, life, life, that's life.
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