The area drawn includes the air tubes, veins, and arteries, and illustrates the great thickening of the interlobular connective tissue into broad whitish bands and of the walls of the air tubes, veins, and arteries: a, air tube cut obliquely; a', air tube cut directly across; b, arteries cut across; c, large vein completely occluded by a thrombus or plug formed during life.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
It is clear that they thus secured patency of the air-passages after these had become occluded.
"Makers of Modern Medicine"
James J. Walsh
He stared at his face in the bar mirror for a few seconds, and ordered a bourbon and soda when a bartender came over and occluded the image.
"Out Like a Light"
Gordon Randall Garrett