Borders of the lung
Encyclopedia
The anterior border of the lung is thin and sharp, and overlaps the front of the pericardium
. The anterior border of the right lung
is almost vertical, and projects into the costodiaphragmatic recess
; that of the left lung
presents, below, an angular notch, the cardiac notch, in which the pericardium is exposed. Opposite this notch the anterior margin of the left lung is situated some little distance lateral to the line of reflection of the corresponding part of the pleura.
The posterior border of the lung is broad and rounded, and is received into the deep concavity on either side of the vertebral column. It is much longer than the anterior border
, and projects, below, into the phrenicocostal sinus.
The 'inferior border of the lung is thin and sharp where it separates the base from the costal surface and extends into the costodiaphragmatic recess
; medially where it divides the base from the mediastinal surface it is blunt and rounded.
Pericardium
The pericardium is a double-walled sac that contains the heart and the roots of the great vessels.-Layers:...
. The anterior border of the right lung
Right lung
The human right lung is divided into three lobes , superior, middle, and inferior, by two interlobular fissures:-Fissures:...
is almost vertical, and projects into the costodiaphragmatic recess
Costodiaphragmatic recess
In the pleural cavity, the costodiaphragmatic recess is a potential space at the posteriormost tips of the cavity, located at the junction of the costal pleura and diaphragmatic pleura...
; that of the left lung
Left lung
The human left lung is divided into two lobes, an upper and a lower, by the oblique fissure, which extends from the costal to the mediastinal surface of the lung both above and below the hilum....
presents, below, an angular notch, the cardiac notch, in which the pericardium is exposed. Opposite this notch the anterior margin of the left lung is situated some little distance lateral to the line of reflection of the corresponding part of the pleura.
The posterior border of the lung is broad and rounded, and is received into the deep concavity on either side of the vertebral column. It is much longer than the anterior border
Anterior border
Anterior border can refer to:* Anterior margin of pancreas* Anterior border of lung...
, and projects, below, into the phrenicocostal sinus.
The 'inferior border of the lung is thin and sharp where it separates the base from the costal surface and extends into the costodiaphragmatic recess
Costodiaphragmatic recess
In the pleural cavity, the costodiaphragmatic recess is a potential space at the posteriormost tips of the cavity, located at the junction of the costal pleura and diaphragmatic pleura...
; medially where it divides the base from the mediastinal surface it is blunt and rounded.