Posterior humeral circumflex artery
Encyclopedia
The posterior humeral circumflex artery (posterior circumflex artery, posterior circumflex humeral artery) arises from the axillary artery
at the lower border of the subscapularis, and runs posteriorally with the axillary nerve
through the quadrangular space
.
It winds around the neck of the humerus
and is distributed to the Deltoid muscle (aka deltoideus) and shoulder-joint, anastomosing with the anterior humeral circumflex and profunda brachii
.
Axillary artery
In human anatomy, the axillary artery is a large blood vessel that conveys oxygenated blood to the lateral aspect of the thorax, the axilla and the upper limb...
at the lower border of the subscapularis, and runs posteriorally with the axillary nerve
Axillary nerve
The axillary nerve or the circumflex nerve is a nerve of the human body, that comes off the of the brachial plexus at the level of the axilla and carries nerve fibers from C5 and C6...
through the quadrangular space
Quadrangular space
The quadrangular space is an axillary space in the arm. This is a clinically important anatomic space in the arm. In the quadrangular space, the axillary nerve and posterior circumflex humeral artery can be compressed or damaged in the space due to space occupying lesions or disruption in the...
.
It winds around the neck of the humerus
Neck of the humerus
Neck of the humerus can refer to:* Surgical neck of the humerus* Anatomical neck of humerus...
and is distributed to the Deltoid muscle (aka deltoideus) and shoulder-joint, anastomosing with the anterior humeral circumflex and profunda brachii
Profunda brachii
The arteria profunda brachii is a large vessel which arises from the lateral and posterior part of the brachial artery, just below the lower border of the Teres major.-Course:...
.
See also
- Anterior humeral circumflex arteryAnterior humeral circumflex arteryThe anterior humeral circumflex artery , considerably smaller than the posterior, arises nearly opposite it, from the lateral side of the axillary artery....