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Dirt and contaminants from the inspired air.

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15y ago

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Related Questions

Is villi are present in lungs?

no


What do the alveoli of the lungs the microvilli and villi in the intestine and the gill lamellae in fishes gills have in common?

The microvilli and villi in the intestine increase the absorbent surface where nutrients are transported into the blood. The alveoli in the lungs and gill lamellae bring oxygen in the air and water to the bloodstream,


What does villi do in the body?

In the intestinal wall, the villi (with micro-villi on them) are used to increase the surface area (just like the inside of your lungs do). This means that in the relatively small space, a lot of the nutrients in the food you eat can be absorbed by them and then diffused into the blood stream.


Why are the lungs and the small intestines lined by a very large number of capillaries?

the small intestine is lined with villi


Where does blood pickup oxygen?

Blood picks up oxygen from the lungs.


What structure enables the small intestine to absorb large amounts of nutrients?

villi


What are the three types of villi?

The three types of villi are: Intestinal villi-microscopic finger like projections on the inner surface of the ileum. Chorionic villi-villi on the outermost membrane of the foetus. Arachnoid villi-villi on the arachnoid membrane of the brain.


What is a easy definition for micro villi?

A micro villi is a micro villi


Are finger like projections of the mucosa?

Villi. Most absorbtion occurs in the ileum btw.


How do you make villi plural?

Villi is plural. One is Villus, many are Villi.


What are the similarities and differences between villi and alveoli?

Villi are in the small intestine and alveoli are in the lungs. They both work by diffusion.


Do mammals have villi?

Yes, mammals have villi. An example is the villi in the intestines of humans which help to absorb nutrients.