Apex of lung
Encyclopedia
The apex of the lung is the rounded upper part of the human lung
. It extends into the root of the neck, reaching from 2.5 cm to 4 cm above the level of the sternal end of the first rib
.
A sulcus
, produced by the subclavian artery
as it curves in front of the pleura, runs upward and lateralward immediately below the apex.
Lung
The lung is the essential respiration organ in many air-breathing animals, including most tetrapods, a few fish and a few snails. In mammals and the more complex life forms, the two lungs are located near the backbone on either side of the heart...
. It extends into the root of the neck, reaching from 2.5 cm to 4 cm above the level of the sternal end of the first rib
First rib
The first rib is the most curved and usually the shortest of all the ribs; it is broad and flat, its surfaces looking upward and downward, and its borders inward and outward....
.
A sulcus
Sulcus (anatomy)
A sulcus is a depression or fissure in the surface of an organ, especially the brain.-Elsewhere:* anterior interventricular sulcus* calcaneal sulcus* coronal sulcus* gingival sulcus* gluteal sulcus* interlabial sulci...
, produced by the subclavian artery
Subclavian artery
In human anatomy, the subclavian arteries are two major arteries of the upper thorax , below the clavicle . They receive blood from the top of the aorta...
as it curves in front of the pleura, runs upward and lateralward immediately below the apex.
See also
- Zones of the lung
- Simon focusSimon focusA Simon focus is a tuberculosis nodule that can form in the apex of the lung when a primary TB infection elsewhere in the body spreads to the lung apex via the bloodstream. Simon focus nodules are often calcified....
, a nodule that can form in the apex in tuberculosisTuberculosisTuberculosis, MTB, or TB is a common, and in many cases lethal, infectious disease caused by various strains of mycobacteria, usually Mycobacterium tuberculosis. Tuberculosis usually attacks the lungs but can also affect other parts of the body...
sufferers