The subscapularis muscle was supplied by the subscapular, suprascapular and circumflex scapular arteries. The supraspinatus and infraspinatus
What does 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 are the branches of the Subscapular artery?
About 4 cm from its origin it gives off two branches, first the scapular circumflex artery and then the thoracodorsal artery. From the thoracodorsal artery it supplies latissimus dorsi, while the scapular circumflex artery participates in the scapular anastamosis.
What artery supplies rotator cuff muscles?
The major arterial supply to the rotator cuff is derived from the ascending branch of the anterior humeral circumflex artery, the acromial branch of the thoracoacromial artery, as well as the suprascapular and posterior humeral circumflex arteries.What muscles are supplied by the thoracodorsal artery?
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 the dorsal scapular artery supply?
The dorsal scapular artery (DSA) supplies the levator scapulae and rhomboid muscles, and contributes to the arterial anastomosis around the scapula.
What artery is above collar bone?
The suprascapular artery is a branch of the thyrocervical trunk, which emerges from the first part of the subclavian artery. It runs across the front of your neck and behind the clavicle (collarbone) to supply blood to the muscles, skin, and bones in your chest and shoulder.
What artery supplies the supraspinatus muscle?
The supraspinatus receives its blood supply from the suprascapular and the dorsal scapular arteries. [7] The suprascapular artery is typically a branch of the thyrocervical trunk, a branch of the subclavian artery, though it may arise directly from the third part of the subclavian artery.What nerve supplies subscapularis?
Innervation. The subscapularis is innervated by both the upper subscapular nerve (USN) and lower subscapular nerve (LSN). Both the USN and LSN arise from the posterior cord of the brachial plexus.
What artery supplies the trapezius?It was found that there are two main patterns of vascular supply to the trapezius, and that the muscle is principally supplied by three vascular sources: the transverse cervical artery, the dorsal scapular artery, and the posterior intercostal arterial branches.
Article first time published onWhere does circumflex scapular artery supply?
OriginSubscapular arterySupplyDeltoid, teres minor and triceps brachii muscles; glenoid labrum and articular capsule of the glenohumeral joint; skin overlying spine and lateral border of scapula
Where is the subscapularis muscle?
The subscapularis muscle originates at the subscapular fossa and inserts into the lesser tubercle of the humerus. The muscle internally rotates and adducts the humerus. The bicep tendon lies underneath the subscapularis tendon in the bicipital groove.
What is 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.
What artery travels with thoracodorsal nerve?
The thoracodorsal artery is a branch of the subscapular artery. It travels inferiorly with the thoracodorsal nerve and supplies the latissimus dorsi.
What does thoracodorsal nerve supply?
The thoracodorsal nerve is a pure motor nerve that innervates the latissimus dorsi muscle. … The primary blood supply of the latissimus dorsi muscle is the thoracodorsal artery. The dorsal divisions of T6 to T12 provide the sensory innervation of the skin of the latissimus dorsi muscle.
What is 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.
Where is the radial artery?
The radial artery runs on the inside of the forearm from the elbow to the thumb. The artery lies just under the surface of the skin. You may be able to see the blue or purple vein inside your wrist where the artery brings blood to the thumb.
What is subclavian artery?
The subclavian arteries lie just below the clavicles, providing blood supply to the bilateral upper extremities with contributions to the head and neck. The right subclavian artery derives from the brachiocephalic trunk, while the left subclavian artery originates directly from the aortic arch.
What is the space between your collarbones called?
The thoracic outlet is a narrow space between your collarbone (clavicle) and your first rib. Nerves and blood vessels exit from your chest to your arm through this space.
What does the Costocervical trunk supply?
The costocervical trunk is a branch of the subclavian artery which supplies the upper extremities and contributes partly to the blood supply of the head and neck.
Where is transverse artery?
The transverse cervical artery (also called the transverse artery of the neck) is a small blood vessel located in your neck. This artery provides blood supply to your trapezius muscle, a large muscle in your back that helps raise your arms.
What does the ascending cervical artery supply?
The ascending cervical artery helps to supply the neck musculature and the posterior elements of the cervical vertebrae. b. Superficial (transverse) cervical artery. This artery supplies the superficial and deep back muscles of the cervical and upper thoracic regions.
What are the skeletal attachments of the subscapularis?
The subscapularis is a large triangular muscle which fills the subscapular fossa and inserts into the lesser tubercle of the humerus and the front of the capsule of the shoulder-joint.
What artery accompanies the axillary nerve?
The axillary nerve travels through the quadrangular space with the posterior circumflex humeral artery and vein to innervate the deltoid and teres minor.
What artery supplies the teres minor?
The teres minor is supplied by the subscapular artery and one of its branches, the circumflex scapular artery, as well as the posterior circumflex humeral artery. The subscapular artery and the posterior circumflex humeral artery arise from the third, most distal portion of the axillary artery.
Does Infraspinatus abduct?
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.
What arteries supply the deltoid?
The posterior circumflex humeral artery was the most important artery. It supplied the posterior and middle parts of the deltoid muscle. The anterior circumflex humeral artery supplied the anterior part of the deltoid muscle in 63%.
What artery supplies serratus anterior?
The vascular supply to the serratus anterior comes from the superior and lateral thoracic arteries (branches of the axillary artery) as well as branches from the thoracodorsal artery (branch of subscapular artery).
What artery supplies the latissimus dorsi?
Blood Supply and Lymphatics In addition to the thoracodorsal artery, the latissimus dorsi also receives blood supply from dorsal perforating branches of the lower three posterior intercostal arteries and the upper three lumbar arteries.
Where does the dorsal scapular artery come from?
The dorsal scapular artery (or descending scapular artery) is a blood vessel which supplies the levator scapulae, rhomboids, and trapezius. It most frequently arises from the subclavian artery (the second or third part), but a quarter of the time it arises from the transverse cervical artery.
What Innervates rhomboid major?
The rhomboids are important in upper limb movement and stability of both the shoulder girdle and scapula. Both rhomboids receive innervation from the dorsal scapular nerve and supplied by the dorsal scapular artery.
