Alveoli

The alveolar macrophages would phagocytize(eat) it.

More commonly known as Gas Exchange

Gas exchange takes place in the lungs. The movement of breathing causes the diaphragm and intercostal muscles in the chest cavity to change in size. Inside the lungs, there are large tubes branching off the windpipe called bronchi, which split into smaller and smaller tubes called bronchioles. These end in microscopic, bubble-shaped air sacs called alveoli. This is where the gas exchange takes place. In the alveolus oxygen diffuses from the air into the blood and carbon dioxide diffuses in the opposite direction.

There are approximately 300 million alveolar sacs in the human body. The range in size from 70-300um(micro meters) in Diameter.

Capillaries

because they need to have the proper exchange of CO2 in the respiratory system to help the lungs carry out or organs for that matter, carry out the specific functions in order for this system to have success.

Warm the air, Moisten, and filter of debris.

an alveolus, using the Latin pluralisation system I think

emphysema

The alveoli are like plump grapes that are empty inside. They need the plump surface area for capillaries to wrap around them, so Red Blood Cells can trade oxygen molecules for carbon dioxide molecules. But in emphysema, the alveoli collapse. Surface area shrinks. The person cannot get good O2. The body starts to rely on increased CO2 (rather than low O2) to regulate when to breathe.

I think that it protects them because they like swish them about and make them covered by a mucusy layer which then protects them further called bronchilus. this eventully stops any damage at all in the alveoli

pharynx-vocal cords

respiration.

Blood goes:

Back to the heart then from the heart around the body.

That's why humans are dual circulation, there's one side of the heart for 'heart to lungs' and another for 'heart to body'. The body side has more muscle because more blood needs to be moved.

No. Once blood reaches the alveoli it will immediately start to release CO2 to the air in our lungs and absorb O2 from the air in our lungs. This means that the PCO2 will be higher in the blood of the pulmonary artery than in the blood of the alveolus. If this were not so, then passing blood through the alveoli would be pointless.

increase surface area for a given volume

During gas exchange in the lungs, oxygen from inhaled air diffuses into the blood within the capillaries surrounding the alveoli, while carbon dioxide, a waste product of metabolism, diffuses from the blood into the alveoli to be exhaled. This process enriches the blood with oxygen, which is then transported to tissues throughout the body for cellular respiration. The removal of carbon dioxide helps maintain the body's pH balance and prevents respiratory acidosis. Thus, gas exchange is crucial for sustaining life by ensuring a continuous supply of oxygen and the removal of carbon dioxide.

A yawn is a very deep inspiration

In an average adult with healthy lungs we find approximately 300 million alveoli with a total surface area approaching 150 meters square, or the size of a tennis court.
70m2
The edzact size of a tennis court xxx
Typically between 50 and 100 square meters
160 meters squared.

No

Nasal Cavity, Larynx, Trachea, Bronchi, Bronchioles, Alveoli.

Alveoli exchange Oxygen with blood in capillaries

A pneumothorax, or a collapsed lung.

A person would suffocate.