12
Oct
Specifically this muscle originates from the supraspinous fossa of the scapula. Attachments of Supraspinatus Origin Insertion.
The superior aspect of greater tubercle of the humerus.
Supraspinatus origin and insertion. Origin Insertion As you already know the supraspinatus muscle is located in the shoulder. Specifically this muscle originates from the supraspinous fossa of the scapula. The supraspinatus originates from the walls of the supraspinous fossa of the scapula.
The supraspinatus completely fills the supraspinous fossa passes laterally and inserts onto the greater tubercle of the humerus. The supraspinatus provides abduction of the upper arm and stabilizes the glenohumeral joint. Attachments of Supraspinatus Origin Insertion.
Supraspinous fossa of the scapula. Superior aspect of the greater tubercle of the humerus. This Muscle tendon overuse may lead to pain near shoulder joint called supraspinatus Tendinitis.
Origin -It originates from the medial two -thirds of the supraspinous fossa of the scapula. Insertion -It inserts into the upper impression of the greater tubercle of the humerus. Nerve supply -The suprascapular nerve c5-c6 supplies the muscle.
Supraspinous fossa of the scapula. The superior aspect of greater tubercle of the humerus. Actions of the supraspinatus muscle.
Subscapular fossa of scapula. Lesser tubercle of humerus. Arm internal rotation Stabilizes humeral head in glenoid cavity.
Upper and lower subscapular nerves C5 - C6 Blood supply. Suprascapular artery axillary artery subscapular artery. Origin and insertion.
Infraspinatus muscle lies on the dorsal surface of the scapula deep to trapezius and parts of the deltoid and latissimus dorsi muscles. It originates with strong muscle fibers directly from the medial two-thirds of the infraspinous fossa whereas its tendinous fibers arise from the ridges of the fossa. In this tutorial on the supraspinatus muscle we will go through its anatomy covering the Origin Insertion Action Nerve Supply and Blood Supply.
The supraspinatus muscle is a rotator cuff muscle located in the shoulder specifically in the supraspinatus fossa a concave depression in the rear portion of the scapula or shoulder blade. It gets its name because of its similar shape to the Greek letter delta Δ. The muscle has a wide origin spanning the clavicle acromion and spine of scapula.
It passes inferiorly surrounding the glenohumeral joint on all sides and inserts onto the humerus. The deltoid is formed of acromial clavicular and scapular spinal parts. Medial three quarters of supraspinous fossa of scapulaupper surface of spine bipennate INSERTION.
Superior facet on greater tuberosity of humerus and capsuleof shoulder joint. Abducts arm and stabilizes shoulder joint. The supraspinatus muscle has its origin from the supraspinous fossa of the scapula and inserts into the upper facet of the greater tuberosity of the humerus Fig.
The muscle passes across the superior aspect of the shoulder joint with the inferior portion of the tendon intimately involved with the. It originates from medial two-third of the supraspinous fossa of the scapula. It inserts in the upper impression on the greater tubercle of the humerus.
It is supplied by Suprascapular nerve C5 C6 Action. Along with other scapular muscles it steadies the head of humerus during arm movements. Lateral border of scapula.
Greater tubercle of humerus Action. Arm external rotation arm adduction. Stabilizes humeral head in glenoid cavity Innervation.
Axillary nerve C5 C6 Blood supply. Suprascapular artery dorsal scapular artery. This video explains the anatomy of the infraspinatus muscle one of the 4 rotator cuff muscles.
Origin insertion and actions. Test yourself with our rotator.