Explain the relationship between the structure and function of alveoli

Explain the relationship between the structure and function of alveoli

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Explain the relationship between the structure and function of alveoli Gaseous exchange relies on simple diffusion. In order to provide sufficient oxygen and to get rid of sufficient carbon dioxide there must be a large surface area for gaseous exchange and a very short diffusion path between alveolar air and capillaries. (Below is a blow up of the boxed area in the diagram) The alveoli have very thin walls and a vast total surface area across which respiratory gases
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: diffuse into and from the numerous alveolar capillaries that surround them (fig 14.2 pg. 242). A film of lipoprotein lining the alveoli of mammalian lungs prevents them from closing/collapsing. [The surface available is around 140m2 in an adult, around the area of a singles tennis court]....
View Full Document

Ask a homework question - tutors are online