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How To Describe The Physiology Of Lungs

How To Describe The Physiology Of Lungs



we need oxygen to use our food, to change over our food into ATP that would then be able to support different sorts of cell capacities, or whatever we need to do; move, inhale, think or all that we need to do. What's more, that through the procedure of breath, we separate those sugars and discharge carbon dioxide. So in this video what I need to do is make a major stride back and think about how we truly get our oxygen into our body and how we discharge it once more into the environment. Another approach to consider it is the manner by which we ventilate ourselves. How would we get oxygen in and how would we get carbon dioxide out? Also, I figure any of us could at any rate start this video. It begins in our nose or in our mouth. I generally have an obstructed bosom, so I frequently need to manage my mouth. I lay down with my mouth regularly. Be that as it may, it generally begins in the nose or mouth. Let me draw somebody with a nose and a mouth. So suppose this is my individual. Possibly your mouth will open and you can relax. His eyes are not significant, yet to make sure you realize he is an individual. So this is my guinea pig, the individual I'm going to use for graphing. That is his ear. Possibly he has a little ... we should give him some hair. The entirety of that is immaterial, yet this is our man. This is the person who will give us how we suck in air and how we get freshen up of the body. So how about we go inside this kid. I can draw its outside first. Let me perceive how well I can do this. So this is out of the kid. That doesn't look great. Suppose the person resembles this and has ... these are his shoulders. That is our kid All great. In this way, in our mouth, we have our oral pit, which is only the space that our mouth makes. We have our oral hole. I could stick our tongue out and all that and perhaps I would.

Possibly I'll draw the tongue. Be that as it may, you have this space inside the mouth, call it oral cavity. Oral for mouth, depression for space, gap or opening. And afterward you additionally have your noses and they open into a nasal pit. With the goal that's another incredible space this way. Furthermore, we realize that they associate at the rear of our nose or at the rear of our mouth. Furthermore, this entry directly here where they associate is known as the pharynx. At the point when the air goes through the nose, they state that breathing through the nose is better, presumably on the grounds that it is separated by the hair on the button and it is warmed and what isn't, however it can inhale from the two sides. Air enters through the nasal hole or oral pit, and afterward returns through the pharynx, and afterward the pharynx is isolated into two cylinders. One for ... all things considered, one, the air can go down to it is possible that one, yet the other is for food. At that point your pharynx isolates.

On the back you have your throat, and we will speak increasingly about the throat in a future video. At the back you have the throat and at the front let me draw a bit of partitioning line there. In advance, perhaps this ... let me interface like this. I was sporting yellow. I'm going to utilize yellow to proceed and I'm going to utilize green for air. At that point it parts simply like that. Thus, behind his air tube, he has his throat. Let me make another shading. And afterward here is your larynx. What's more, I'm going to deal with the larynx. The throat is the place your food descends. We realize that we likewise eat food with our mouths. So this is the place we need our food to go: down the throat. In any case, the focal point of this video is our ventilation. What do we do with our air? So I will center as the air goes through our larynx. What's more, the larynx is additionally our voice box. Thus, as you hear me talk now, there are these seemingly insignificant details here that vibrate at the right frequencies and I can shape the sound with my mouth to make this video. With the goal that's your voice box as well, yet I won't center around that now. It's known as a voice box as a result of this anatomical structure that resembles that. Be that as it may, at that point, after the air goes through the larynx, this is entering, it goes to the trachea, which is basically the air pipe.

The throat is the funnel for food. Let me compose this. And afterward the trachea, and the trachea is really a sensibly unbending structure. It has ligament around it and it bodes well that it has ligament. You would prefer not to, you can envision a hose, on the off chance that it bowed a lot of you were unable to get a great deal of water through it or a ton of air. So you don't need this to twist excessively. This is the reason you have to have a specific firmness, that is the reason you have ligament around you. And afterward it parts into two cylinders, and I think you know where these two cylinders go. What's more, I'm not attracting this super detail. I simply need you to get a thought of ​​them, yet these two cylinders are the bronchus and one is a bronchus. Furthermore, they likewise have ligament, so they are very hardened, yet the bronchi keep on isolating. They continue partitioning into littler cylinders also, littler like that, and eventually they quit having ligament. They stop to be sensibly gid, yet they keep separating. So I will draw them like these little lines. Eventually they become such flimsy things. They simply discrete. Along these lines, the air keeps on isolating and spread and goes down the various ways. Also, when the bronchi no longer have ligament around them, they are not, at this point unbending. The first is called, or in reality all cylinders after that point are called bronchioles.

These are bronchioles. Along these lines, for instance, that we could call a bronchiole. Also, there is nothing extravagant here. It's only a funnel that gets more slender and more slender. We have named the various pieces of the channels as various things, however the thought is, we are going to go it through the mouth or nose and proceed to separation and gap this principle division into two unique pathways that lead to every one of our lungs. Let me draw this current person's lungs here. What's more, these bronchi or thebronchi partition in the lungs: the bronchioles are found in the lungs lastly the bronchioles end. What's more, this is the place it gets fascinating. They continue partitioning littler and littler, more slender and more slender, in these little air sacs, much the same as that. Toward the finish of each excessively little bronchiole are these little air sacks, overly little packs, and I'm going to discuss these air sacks in a second. Furthermore, these are called alveoli. So I have utilized a great deal of extravagant words, yet the general thought is straightforward. Air enters through a funnel. The pipeline gets more slender and more slender and they end up in these little air sacs. Also, you're stating, great, how does that get oxygen into my framework? Well the key here is that these air packs are excessively little and have extremely, dainty dividers, or I guess slim layers. So let me draw nearer. So on the off chance that I needed to go close to one of these alveoli, and just to give you a thought, these are practically all little. I drew them very enormous here, yet every attachment permits me to draw somewhat bigger. Let me draw these air sacs. At that point you have these airsacs like this. And afterward you have an abronchiole that closes in that air sac. Maybe a bronchiole is deciding in another air sac also, another arrangement of air sacs too. Each of these is just 200 to 300 microns in distance across. Along these lines, that separation there, let me change shading, that separation there is 200 to 300 microns. Also, on the off chance that you don't have a clue what a micron is, a micron is a millionth of a meter, or you can consider it to be a thousandth of a millimeter. So this is 200 thousandths of a millimeter.


Or then again you can consider them, and this is really an extremely simple approach to picture it, this is about a fifth of a millimeter. So in the event that I truly attempt to draw it on the screen, on the off chance that you made this full screen, a millimeter is pretty much that far. Possibly somewhat farther than that. Possibly about that far. So envision a fifth of that and we're discussing the width of one of these things. What's more, just to place it in the full plan comparative with cells, the normal cell in the human body is around 10 microns. Subsequently, this is just around 20 or 30 cells in measurement or comparative with the normal number of cells in the human body. So these have a supertin film. In the event that you consider them to be inflatables, the inflatable is slight, just about a cell thick, and they are associated with blood stream, or really, a superior perspective is that our circulatory framework passes directly close to every one of these things. Along these lines, you have veins that originate from the heart and need to be oxygenated. As a rule, veins that don't have oxygen, and I will do this in considerably more detail when I make recordings about the heart and our flow framework, veins that don't have oxygen. - oxygenated blood is somewhat darker. It looks somewhat purple. At that point I will draw it as blue. So these are vessels that originate from the heart. So this blood here has no oxygen or has been deoxygenated or has almost no oxygen. Also, the word for veins that originates from the heart is courses. Let me record that. I will survey it again when we spread it in the heart. So the supply routes are veins of the heart. What's more, you've presumably known about supply routes. The vessels that go to the heart are called veins. It is essential to remember this on the grounds that later you will see that the courses don't generally convey oxygen or that they are not oxygenated and that the veins are not generally somehow. We will go into much more detail when we truly spread the heart and circulatory framework, yet simply recollect, supply routes vanish. Veins go to the heart. In this way, here, these are supply routes that go from the heart to the lungs, to the alveoli since they need the blood that ventures out in them to get oxygen. Gen. So what will happen is that wind currents through the bronchioles and flows around the alveoli, filling the alveoli, and as they fill, the little oxygen particles can go through the alveoli layer and basically be consumed by blood.

I will do considerably more about that Presently we are discussing hemoglobin and red platelets, yet you should understand that there are just numerous vessels. Vessels are just super-little veins that permit air to pass, basically oxygen and carbon dioxide atoms going between them. These have numerous vessels on them that permit gas trade. Along these lines, oxygen can get into this blood, and once oxygen, this is the vessel that comes out of the heart and afterward it's only a cylinder. So once it gets the oxygen it will return to the heart. Furthermore, basically, this is where this vessel, this pipeline, some portion of our circulatory framework, goes from being a course, since it originates from the heart, to a vein since it returns to the heart. What's more, there is a unique word for these supply routes and veins. They are called aspiratory corridors and veins. In this way, going from the heart to the lungs, to the alveoli, these are the aspiratory supply routes. What's more, returning to the heart, the aspiratory veins. Presently you state, Sal, what does aspiratory mean? All things considered, pulmo originates from Latin for the lungs. It actually implies the supply routes that are from the lungs or that go to the lungs and the veins that originate from the lungs. So every time individuals talk about something lung, it discusses our lungs, or it very well may be something identified with the manner in which we relax. So it is a decent word to know. Anyway, you have oxygen coming in through your mouth or nose, through the pharynx it could fill your stomach. We can pop our stomach like an inflatable, however that doesn't generally help us getoxygen our circulation system.


Yet, the oxygen will get through our larynx, into our trachea, through the bronchi, in the end into the bronchioles, finishing off with alveoli and having the option to be invested in what the corridors, however then we are going to return and afterward we will basically oxygenate the blood. Red platelets turn red once hemoglobin turns red or red once it truly has oxygen and afterward we return. And yet, it's not just about bringing oxygen into our supply routes or into hemoglobin. It is additionally about discharging carbon dioxide. So these blue corridors coming out of the lungs are additionally going to discharge carbon dioxide into the alveoli. Also, these will be breathed out. So we have oxygen coming in. Different things will enter, however the O2 is what is invested in the alveoli. And afterward when we inhale out, we will have carbon dioxide that was in our blood, yet then it is assimilated into the alveoli and they are crushed out. I will let you know in a second how it is crushed. In reality, it's so crushed what really ... at the point when the air comes out once more, it can vibrate my vocal ropes and permit me to talk, yet I'm not going to really expound on it. So the exact opposite interesting point about this entire lung framework or about our lungs is, how can it power air in and how can it get it out? Also, the manner in which it's done is somewhat similar to an inflatable or globe, is that we have this colossal layer of level muscles. Let me pick a decent shading here. Just underneath the lungs, and this is known as a thoracic stomach. So when it's casual, it's molded like a curve, and the lungs are tight. They don't have a great deal of volume. In any case, when I basically inhale, what happens is that this thoracic stomach is contracted and when it contracts, it abbreviates, yet in particular, it opens up the space where my lungs are. At that point my lungs can occupy that space. So what it does is basically it resembles pulling a greater inflatable, expanding the volume of my lungs. What's more, when the volume of something increments, so the lungs will get greater as the thoracic stomach agreements and curves, it makes more space, and as the volume of something gets greater, the weight inside them diminishes. On the off chance that you recollect from material science, pressure by volume is a steady.


So when we inhale, our cerebrum basically advises our stomach to contract. We have more space around our lungs. Our lungs grow to fill the hole. We have less weight here than outside, or you can consider it to be negative weight. So the air consistently needs to go from high strain to low weight thus the wind streams into our lungs. What's more, ideally there is some oxygen in there that can then basically enter our alveoli and end up in our conduits and afterward come back to the veins as oxygen bound to hemoglobin. I'll speak increasingly about that in detail. And afterward when we quit getting the stomach, it comes back to this angled position. It contracts. It resembles an elastic band. It gets the lungs and basically ousts the air and since air will have significantly more carbon dioxide. What's more, just to get a thought of ​​... I can take a gander at my lungs ... I can't take a gander at them, yet or on the other hand they don't appear to be too enormous. How would I get enough oxygen in them? Also, the key is that, because of this stretching procedure and the alveoli, the interior surface region of  the lungs are in reality a lot greater than you can envision, for all intents and purposes what I could have envisioned in the event that somebody hadn't let me know. So it really turns out, I gazed toward it, the inward surface zone of ​​your alveoli, so the complete surface region where oxygen can be consumed or carbon dioxide can be ingested from the blood, is really 75 meters squares. That is meters, not feet. All things considered, it resembles a- - envision a covering or field.


That is just about nine by nine meters. That is just about 27 by 27 square feet. That is the size of certain individuals' lawns. That is the measure of surface air you have inside your lungs. It is totally collapsed. This is the means by which it stalls out in what give off an impression of being moderately little lungs. In any case, that is the thing that gives us enough surface region for enough air, enough oxygen to go through the film of the alveoli in our blood framework, and enough carbon dioxide to reemerge. What's more, just to get a thought of ​​how numerous alveoli we had ... I disclosed to you they are exceptionally little, we really have 300 million in every lung. In every lung, we have 300 million alveoli. Anyway, ideally that will give you a nice thought of ​​how we in any event get oxygen in our blood framework and carbon dioxide. In the following video, I will speak increasingly about our genuine circulatory framework and how we transport oxygen from the lungs to the remainder of the body and how we convey carbon dioxide from the remainder of the body to the lungs.

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