Question

Are there any parts of the human body that get oxygen directly from the air and not from the blood?

answer:
cornea in the eye

Answer 1

Yes, there is a part of the human body that gets oxygen directly from the air and not from the blood, and that is the cornea of the eye. The cornea is the clear outermost layer of the eye that covers the iris, pupil, and anterior chamber, and it is responsible for refracting light and focusing it on the retina. The cornea is avascular, meaning it does not have its own blood supply, and instead gets oxygen and nutrients directly from the air through the tear film that covers its surface.

Answer 2

Answer: There are a few parts of the human body that get oxygen directly from the air and not from the blood. One example is the lungs, which are responsible for exchanging oxygen and carbon dioxide between the air and the blood. Another example is the mucous membranes of the nasal cavity, where oxygen can diffuse across the thin epithelial layer and enter the bloodstream directly. Additionally, the skin can absorb small amounts of oxygen directly from the air, although the majority of the oxygen in the body is transported through the bloodstream.

Step-by-step explanation: