Branches of the right pulmonary artery to the middle lobe of the right lung.

Studies were carried out on 100 right lungs taken from human cadavers of both sexes aged from 1 month to 80 years. The material was divided into 3 age groups. The pulmonary artery and the bronchi were injected with 65% duracryl and then digested in sulfuric acid. The number and dimensions of the branches penetrating middle lobe were determined. In 57% of cases the lobe is supplied by 2 arteries and in 43% of cases by one artery. The length of arteries is up to 30 mm, and diameter 10.6 mm.