And these are called alveoli.

Let me draw these air sacs.

Let me draw one right here.

But the oxygen will come through our larynx, into our trachea, through the bronchi, eventually in bronchioles, ending up in alveoli and being able to be absorbed into what where the arteries, but then we're going to go back and then essentially oxygenate the blood.

It enters our body through the nose and mouth, moves down into the pharynx, trachea and bronchial tubes, and ultimately reaches the alveoli air sacs in the lungs.

So what's going to happen is that the air is flowing through the bronchioles and circulating around the alveoli, filling the alveoli and as they fill the alveoli, the little molecules of oxygen are allowed to cross the membrane of the alveoli and essentially be absorbed into the blood.

Other things will be coming in, but the O2 is what gets absorbed in the alveoli.

These cells cause disruption of the normal air spaces (alveoli) where oxygen is extracted from the atmosphere.

So going away from the heart to the lungs, to the alveoli, these are the pulmonary arteries.

So if I were to zoom in on one of these alveoli and just to give you an idea, these are super duper duper small.

But anyway, we have our little alveoli right there and then we have the capillaries.

They run right past the alveoli and then they become oxygenated and now we're going back to the heart.

And what we learned in the last few videos is that we have our little alveoli and our lungs.

In the gas phase, it can be used to image empty space such as cavities in a porous sample or alveoli in lungs.

Then it goes to the heart, rubs up against some alveoli and then gets oxygenated and then it comes right back.

The infection of herbivores (and occasionally humans) by the inhalational route normally proceeds as follows Once the spores are inhaled, they are transported through the air passages into the tiny air sacs (alveoli) in the lungs.

Once in the lungs, bacteria may invade the spaces between cells and between alveoli, where the macrophages and neutrophils (defensive white blood cells) attempt to inactivate the bacteria.

It's in the loop with the lungs so it's a pulmonary vein and it rubbed up against the alveoli and got the oxygen diffused into it so it is oxygenated.

So you have these air sacs like this.

So you have these vesicles.

literally snared the vesicles to this membrane.

Breathing 100 oxygen also eventually leads to collapse of the alveoli (atelectasis), while at the same partial pressure of oxygen the presence of significant partial pressures of inert gases, typically nitrogen, will prevent this effect.

Windmills?

And then you have a bronchiole that's terminating in that air sac.

The alveoli use pressure to move oxygen and nutrients into the blood.

And they move material around, depending on what they do.

They'll then be packaged in a little transport vesicle and moved to the Golgi apparatus.

It was called it was called The Air Pump, or something like The Leviathan and The Air Pump.

No, agile aerial robots like this one.

(Laughter) No, agile aerial robots like this one.

WK Yeah. The windmill.

Do you have the air cushion?

Trapeze is always good business.

Maybe a bronchiole is terminating in another air sac just like that another set of air sacs just like that.

I'm going to tell you in a second how it gets squeezed.

The girl is checking out the rear of the bicycle.

Syrian ships and aircraft

Here it is, it's about bicycle accidents.

Okay, deploy the airbags. Open.

And when I'm on my bike,

By decreasing the surface area of the airways, you're increasing the pressure of oxygen moving from the alveoli to the blood.

It is implicated as responsible for the heat resistance of the endospore.

So you have these vesicles so these are just you can kind of view them as containers.

And you didn't know about the windmill, you know?

This is called a cycle valve tube.