A vessel that arises from the right ventricle of the heart, extends upward, and divides into the right and left pulmonary arteries that convey unaerated blood to the lungs. When the right ventricle contacts, the blood inside it is put under pressure and the tricuspid valve between the right atrium and ventricle closes. The only exit for blood from the right ventricle is then through the pulmonary trunk. The pulmonary trunk is to the right ventricle what the aorta is to the left ventricle — the outlet vessel.
- Pulmonary therapy
Exercises and treatments designed to help patients maintain and recover lung function, such as with cystic fibrosis and after surgery.Also used for COPD and asthma.
- Pulmonary syndrome, Hantavirus
A severe lung condition caused by hantavirus infection. Abbreviated HPS. In 1993, HPS struck the Four Corners area (where the states of Arizona, New Mexico, Nevada, and Utah meet) with devastating, frequently fatal consequences. As the name indicates, HPS is due to a hantavirus. The HPS outbreak in Four Corners followed 2 years of more […]
- Q fever vaccine
A vaccine against Q fever, an illness first recognized in Australia in the 1930’s that affects people dealing with infected sheep and cattle and their hides and carcasses. The microscopic bacterial agent of Q fever, Coxiella burnetii, is spread with airborne dust and contaminated milk. It was named Q, for query, because little was clear […]
- q in population genetics
The frequency of the less common of two different alternative (allelic) versions of a gene. (The frequency of the more common allele is p).
On a prescription, every two hours.