What muscle does circumflex scapular artery supply?
The circumflex scapular artery is the largest terminal branch of the subscapular artery….Circumflex scapular artery.
| Origin | Subscapular artery |
|---|---|
| Supply | Deltoid, teres minor and triceps brachii muscles; glenoid labrum and articular capsule of the glenohumeral joint; skin overlying spine and lateral border of scapula |
What does the circumflex Subscapular artery supply?
Both terminal branches participate in the formation of anastomoses in the scapular region. The main function of the subscapular artery is to provide blood supply for the muscles and skin of the shoulder, upper extremity and thoracic wall….Subscapular artery.
| Origin | Axillary artery |
|---|---|
| Branches | Thoracodorsal artery, circumflex scapular artery |
What muscles does the Subscapular artery supply?
Supply
- subscapularis, supraspinatus and infraspinatus muscles.
- latissimus dorsi muscle.
- serratus anterior muscle.
What does circumflex scapular artery Anastomose with?
It enters the infraspinatous fossa under cover of the Teres minor, and anastomoses with the transverse scapular artery (suprascapular) and the descending branch of the transverse cervical (a.k.a. dorsal scapular artery).
What does the suprascapular artery supply?
The suprascapular artery supplies the supra- and infraspinatus muscles and travels with the suprascapular nerve. It is a direct branch from the subclavian artery (12%), the thyrocervical trunk (27%) or the internal thoracic artery (11%).
What does anterior circumflex humeral artery supply?
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 is Subscapular artery?
The subscapular artery, the largest branch of the axillary artery, arises from the third part of the axillary artery at the lower border of the subscapularis muscle, which it follows to the inferior angle of the scapula, where it anastomoses with the lateral thoracic and intercostal arteries, and with the descending …
What arteries are linked by the scapular anastomosis?
The scapular anastomosis is a system connecting certain subclavian artery and their corresponding axillary artery, forming a circulatory anastomosis around the scapula. It allows blood to flow past the joint in case of occlusion, damage, or pinching of the following scapular arteries: Transverse cervical artery.
What does the Thoracodorsal artery supply?
The thoracodorsal artery supplies predominantly the latissimus dorsi muscle but also gives branches to the serratus anterior muscle, the axillary skin, the subscapular and teres major muscles.
What does superior thoracic artery supply?
Running forward and medially along the upper border of the pectoralis minor, the superior thoracic artery passes between it and the pectoralis major to the side of the chest. It supplies branches to the first and second intercostal spaces as well as to the superior portion of serratus anterior.
What is the function of infraspinatus muscle?
Action. Infraspinatus is the main external rotator of the shoulder joint. It assists in producing shoulder extension. With the arm fixed, it abducts the inferior angle of the scapula.
Is the circumflex artery part of the subscapular artery?
The circumflex scapular artery (scapular circumflex artery, dorsalis scapulae artery) is a branch of the subscapular artery and part of the scapular anastomoses.
Where does the subscapular artery supply the pectoral girdle?
Circumflex scapular artery (scapular circumflex artery or dorsalis scapulae artery but not to be confused with the dorsal scapular artery ): divides into three branches to supply the pectoral girdle . The subscapular artery is quite stable with ~85% demonstrating classical anatomy as described above 3, 4.
Where does the circumflex artery supply the bicuspid valve?
More likely, the circumflex artery may continue through the AV sulcus to supply the posterior wall of the left ventricle and (with the right coronary artery) the posterior papillary muscle of the bicuspid valve. The left circumflex branches decrease in diameter along their lengths.
Where does the subscapular artery distribute blood to?
It distributes blood to the muscles of the scapular and shoulder regions. The subscapular artery branches off posteriorly into two stems, approximately four centimeters from its origin; its first branch is the circumflex scapular artery and its second is the thoracodorsal artery.