What nerve runs with the posterior circumflex humeral artery?
The posterior humeral circumflex vein, which arises as a branch of the axillary vein, travels with the axillary nerve and the PHCA through the quadrangular space to supply the surrounding structures.
Where does the posterior circumflex humeral artery end?
The posterior circumflex humeral artery is one of two circumflex humeral arteries that surround the surgical neck of the humerus. It arises from the third part of the axillary artery and supplies the shoulder joint and a number of its associated muscles….Posterior circumflex humeral artery.
| Origin | Axillary artery |
|---|---|
| Branches | Descending branch |
Where are circumflex arteries of humerus found?
The anterior humeral circumflex artery runs horizontally, beneath the coracobrachialis and short head of the biceps brachii muscle, in front of the neck of the humerus. On reaching the intertubercular sulcus, it gives off a branch which ascends in the sulcus to supply the head of the humerus and the shoulder-joint.
What does the anterior and posterior circumflex humeral artery supply?
It winds around the surgical neck of the humerus and is distributed to the deltoid muscle and shoulder-joint, anastomosing with the anterior humeral circumflex and deep artery of the arm. It supplies the teres major, teres minor, deltoid, and (long head only) triceps muscles.
What lies along the posterior humeral circumflex artery in the axilla?
Along its course, the axillary nerve enters the quadrilateral space along with the posterior circumflex artery. The quadrilateral space is limited by the long head of the triceps medially, the teres minor muscle superiorly, the teres major muscle inferiorly, and the medial aspect of the proximal humerus laterally.
What muscles does the posterior humeral circumflex artery supply?
The posterior circumflex humeral artery provides part of the blood supply to the glenohumeral joint, teres major and minor, and deltoid muscles 1.
What is posterior humeral circumflex artery?
The posterior circumflex humeral artery arises medially from the axillary artery at the proximal part of the arm. It arises specifically from the third part of the axillary artery. It then immediately travels posteriorly and circles the surgical neck of the humerus via the quadrangular space 1.
What is the function of the humeral circumflex artery?
Supply. The anterior circumflex humeral artery provides part of the blood supply to the glenohumeral joint, teres major and minor, and deltoid muscles. The ascending branch provides supply to the head of the humerus 1.
What does circumflex humeral artery supply?
What are the three cords around the axillary artery?
It has three branches that are variable in their order: the subscapular trunk, the anterior humeral circumflex artery, and the posterior humeral circumflex artery.
What is quadrilateral space?
The quadrangular space (also known as the quadrilateral space) is an anatomic interval formed by the shaft of the humerus laterally, the long head of the triceps medially, the teres minor muscle superiorly, and the teres major muscle inferiorly.
What is a circumflex artery?
The circumflex artery branches off the left coronary artery and encircles the heart muscle. This artery supplies blood to the outer side and back of the heart.
Where does the posterior humeral circumflex artery originate?
Posterior humeral circumflex artery. The posterior humeral circumflex artery ( posterior circumflex artery, posterior circumflex humeral artery) arises from the third part of axillary artery at the lower border of the subscapularis, and runs posteriorly with the axillary nerve through the quadrangular space . It winds around…
Where is the humeral circumflex located in the body?
It winds around the neck of the humerus and is distributed to the deltoid muscle and shoulder-joint, anastomosing with the anterior humeral circumflex and deep artery of the arm. It supplies the teres major, teres minor, deltoid, and (long head only) triceps muscles.
Where does the circumflex artery begin and end?
Out of all coronary arteries, the circumflex artery manifests the greatest variability in terms of length and distribution. In most cases, the circumflex artery terminates between the left margin and the crux of the heart. However, in about 20-30% of cases, it terminates before reaching the left margin.
What are the branches of the axillary artery?
The axillary artery and its branches, including posterior humeral circumflex. The scapular and circumflex arteries. (Posterior hum. circumflex labeled at center right.)