News tagged with respiratory tract
In humans the respiratory tract is the part of the anatomy that has to do with the process of respiration.
The respiratory tract is divided into 3 segments:
The respiratory tract is a common site for infections. Upper respiratory tract infections are probably the most common infections in the world.
Most of the respiratory tract exists merely as a piping system for air to travel in the lungs; alveoli are the only part of the lung that exchanges oxygen and carbon dioxide with the blood.
Moving down the respiratory tract starting at the trachea, the tubes get smaller and divide more and more. There are estimated to be about 20 to 23 divisions, ending up at an alveolus.
Even though the cross-sectional area of each bronchus or bronchiole is smaller, because there are so many, the total surface area is larger. This means there is less resistance at the terminal bronchioles. (Most resistance is around the 3-4 division from the trachea due to turbulence.)
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
The connection between human avian-origin influenza A (H7N9) virus infection and environmental sources of the virus were determined based on clinical data, epidemiology, and virological characteristics of the three early ...
Diseases, Conditions, Syndromes May 15, 2013 | 5 / 5 (1) | 0
The bacterium M. pneumoniae is carried at high rates in the upper respiratory tracts of healthy children and usual diagnostic tests cannot differentiate between such asymptomatic carriage and actual respiratory tract infect ...
Diseases, Conditions, Syndromes May 14, 2013 | not rated yet | 0
Among infants with neonatal abstinence syndrome (NAS; caused by in utero opioid exposure), variants in certain genes were associated with a shorter length of hospital stay and less need for treatment, preliminary findings ...
Diseases, Conditions, Syndromes Apr 30, 2013 | not rated yet | 0
Scientists from the Max F. Perutz Laboratories (MFPL) of the University of Vienna and the Medical University of Vienna have provided insights into how much harm bacteria can cause to the lung of people having ...
Diseases, Conditions, Syndromes Apr 26, 2013 | not rated yet | 1