The base of the lung is broad, concave, and rests upon the convex surface of the diaphragm, which separates the right lung from the right lobe of the liver, and the left lung from the left lobe of the liver, the stomach, and the spleen.
Since the human diaphragm extends higher on the right than on the left side, the concavity on the base of the right lung is deeper than that on the left.
Laterally and behind, the base is bounded by a thin, sharp margin which projects for some distance into the costodiaphragmatic recess of the pleura, between the lower ribs and the costal attachment of the diaphragm.
The base of the lung descends during inspiration and ascends during expiration.
Famous quotes containing the words base of, base and/or lung:
“In the land of turkeys in turkey weather
At the base of the statue, we go round and round.
What a beautiful history, beautiful surprise!
Monsieur is on horseback. The horse is covered with mice.”
—Wallace Stevens (1879–1955)
“Adolescence is a time when children are supposed to move away from parents who are holding firm and protective behind them. When the parents disconnect, the children have no base to move away from or return to. They aren’t ready to face the world alone. With divorce, adolescents feel abandoned, and they are outraged at that abandonment. They are angry at both parents for letting them down. Often they feel that their parents broke the rules and so now they can too.”
—Mary Pipher (20th century)
“Dylan used to sound like a lung cancer victim singing Woody Guthrie. Now he sounds like a Rolling Stone singing Immanuel Kant.”
—Also quoted in Robert Shelton, No Direction Home, ch. 2, “Prophet Without Honor” (1986)