What does circumflex scapular supply?
What does circumflex scapular supply?
The circumflex scapular artery is the largest terminal branch of the subscapular artery. They contribute to the blood supply of three muscles (deltoid, teres minor, triceps brachii), glenohumeral joint and two small cutaneous areas partially overlying the scapula.
What is dorsal scapular nerve?
The dorsal scapular nerve (C5) supplies the levator scapulae and rhomboid muscles; it aids in elevation and adduction of the scapula toward the spinal column. A nerve lesion leads to lateral displacement of the vertebral border of the scapula and to rhomboid atrophy (difficult to detect).
What nerve lies deep to transverse ligament?
The suprascapular nerve arises from the upper trunk of the brachial plexus. It courses posteriorly to the suprascapular notch of the scapula, accompanied by the suprascapular artery. The nerve passes through the notch deep to the transverse scapular ligament, whereas the artery passes over the ligament.
What nerve runs under the scapula?
The suprascapular nerve appeared normal as it passed over the cranial aspect of the scapula.
What is suprascapular nerve entrapment?
Suprascapular neuropathy, or suprascapular nerve entrapment, is a condition which is due to irritation and damage to the suprascapular nerve (SSN). This condition can result in pain, weakness, or both depending on the cause.
How do I know if I have an axillary nerve?
In the axilla, the axillary nerve is located posterior to the axillary artery and anterior to the subscapularis muscle. It exits the axilla at the inferior border of subscapularis via the quadrangular space, often accompanied by the posterior circumflex humeral artery and vein.
Where does the circumflex scapular artery begin and end?
The circumflex scapular artery stems from the posterior aspect of the subscapular artery and travels posteriorly towards the scapula. The artery curves around the lateral border of scapula and passes through the triangular space formed by the subscapularis (superiorly), teres major (inferiorly) and long head of triceps brachii (laterally).
Where does the circumflex nerve pass back through?
In association with the posterior humeral circumflex artery the nerve passes back through the quadrilateral space, a small opening formed by teres minor above, teres major below, long head of biceps medially and the proximal humerus laterally. Motor innervation is primarily to the deltoid, with branches to teres minor.
Where are the nerves located in the scapular region?
The anterior axillary fold is formedby the pectoralis muscles; the axilla lies between these folds. NERVES. The skin of the scapular region receives sensory information from the medial branches of the posterior rami of cervical nerves C4 to C8 and thoracic nerves T1 to T6 (see Chapter 26).
Where does the subscapular nerve supply the rotator cuff?
The subscapular nerve (s) are a terminal branch of posterior cord, supplying the fourth rotator cuff muscle, the subscapularis, upon which the posterior cord lies. The nerve also provides sensation to the anterior joint capsule, and the anterior glenoid and the anterior surface of the scapula.