Windpipe
(Science: anatomy) The passage for the breath from the larynx to the lungs; the trachea; the weasand.
The gas exchange system in humans and other mammals consisits of two major parts, a conduction system, for the conduction of inspired and expired gases, and an interface” for the exchange of gases between air and blood. The conducting system begins with the nasal passages and continues as the trachea. The trachea divides to form the left and right bronchi which supply the lungs. The bronchi divide into numerous smaller bronchioles which eventually lead into the alveoli, where gas exchange occurs.
The inside of the thoracic cavity is lined with a pleural membrane. Each lung is also surrounded by a separate pleural membrane. The space between the two pleural membranes is fillied with a thin film of fluid(known as pleural fluid), which prvents friction between them during breathing.
Dictionary > Windpipe
You will also like...

Darwin and Natural Selection
This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

The Homo Species
The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..

Protein Activity and Cellular Metabolism
Proteins have a crucial role in various biological activities. Get to know how proteins are able to perform as enzymes, ..

Growth Patterns
This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..

New Zealand’s Biodiversity
Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..

New Zealand’s Unique Geographical History
Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This less..