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The coracoid process acts as an attachment and origin for a large number of muscles (attached muscles not labeled here). The coracoid process is a thick curved process attached by a broad base to the upper part of the neck of the scapula; [2] it runs at first upward and medially; then, becoming smaller, it changes its direction, and projects forward and laterally.
The root of the spine of the scapula is the most medial part of the scapular spine. It is termed "triangular area of the spine of scapula", based on its triangular shape giving it distinguishable visible shape on x-ray images. [1] The root of the spine is on a level with the tip of the spinous process of the third thoracic vertebra. [2]
Spine of scapula Middle of lateral surface of shaft of humerus Medial rotation (in abduction: 40°–50°; in adduction: 70°) Subscapularis: Subscapular fossa: Lesser tubercle of humerus Latissimus dorsi Iliac crest, lumbar fascia, spines of lower 3-4 ribs, inferior angle of scapula Floor of bicipital groove of humerus Teres major
The other more common type of fracture is through the surgical neck of the scapula. The surgical neck exits medial to the coracoid process. [16] An abnormally protruding inferior angle of the scapula is known as a winged scapula and can be caused by paralysis of the serratus anterior muscle. In this condition the sides of the scapula nearest ...
The middle fibers, or transverse of the trapezius arise from the spinous process of the seventh cervical (both in the back of the neck), and the spinous processes of the first, second, and third thoracic vertebrae. They are inserted into the medial margin of the acromion, and into the superior lip of the posterior border of the spine of the ...
deltoid, clavicular/acromial/scapular spinal parts Upper limb, Shoulder, Right/left clavicle, acromion, spine of scapula: deltoid tuberosity of humerus: primarily posterior circumflex humeral artery: axillary nerve: abducts, flexes, and extends shoulder: latissimus dorsi: 2 1 teres major: Upper limb, Shoulder, Right/left
The spinal accessory nerve crosses laterally in the middle part of the muscle and the dorsal scapular nerve may lie deep to or pass through it. [ 4 ] The levator scapulae may lie deep to the sternocleidomastoid at its origin, deep or adjacent to the splenius capitis at its origin and mid-portion, and deep to the trapezius in its lower portion.
The rhomboid major is a skeletal muscle of the back that connects the scapula with the vertebrae of the spinal column. [1] It originates from the spinous processes of the thoracic vertebrae T2–T5 and supraspinous ligament; it inserts onto the lower portion of the medial border of the scapula. [2]