respiratory system
Wednesday, August 31st, 2011The respiratory system consists of organs that deliver oxygen to the circulatory system for transport to the all the cells of the body. [1]
For more information on respiratory system, visit Britannica.com. [2]
All of this breathing couldn’t happen without the respiratory system, which includes the nose, throat, voice box, windpipe, and lungs. [3]
A complete, schematic view of the human respiratory system with their parts and functions. [4]
Within the lungs, the bronchi branch into smaller bronchi and even smaller tubes called bronchioles. [3]
In humans and other mammals, the anatomical features of the respiratory system include airways, lungs, and the respiratory muscles. [4]
Filtering air through the nasal passage prevents airborne bacteria, viruses, smog, dust particles, and other potentially disease-causing substances from entering the lungs or the bronchioles. [1]
Additional animation explains how air is cleansed during inhalation and how oxygen is diffused into the bloodstream for use elsewhere in the body. [5]
At the top of the respiratory system, the nostrils (also called nares) act as the air intake, bringing air into the nose, where it’s warmed and humidified. [3]
The trachea, or windpipe, divides into two bronchi and these on entering the lungs, divide into bronchioles, alveolar ducts, alveolar sacs and individual alveoli. [...] Respiration 3D Medical Animation, very detailed information. [5]
Other animals, such as insects, have respiratory systems with very simple anatomical features, and in amphibians even the skin plays a vital role in gas exchange. [4]
The flow of air begins in the nose, which is divided into the left and right nasal passages and ends in the lungs. [1]
In humans, the diaphragm and, to a lesser extent, the muscles between the ribs generate a pumping action, moving air in and out of the lungs through a system of pipes (conducting airways), divided into upper and lower airway systems. [2]
Carbon dioxide is a waste product that is dumped into the bloodstream from the cells. [1]
Sources:
[1] Respiratory System Information on Healthline
[2] respiratory system: Definition from Answers.com
[3] Lungs and Respiratory System
[4] Respiratory system - Wikipedia, the free encyclopedia
[5] Respiratory System