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The scapula (pl.: scapulae or scapulas [1]), also known as the shoulder blade, is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone). Like their connected bones, the scapulae are paired, with each scapula on either side of the body being roughly a mirror image of the other.
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]
The oblique ridges cross the subscapular fossa from superomedial to inferiolateral (parallel to scapular spine). These ridges are formed by intramuscular tendons of the subscapularis muscle. [1] The costal or ventral surface of the scapula presents a broad concavity, the subscapular fossa.
The glenoid fossa of the scapula or the glenoid cavity is a bone part of the shoulder.The word glenoid is pronounced / ˈ ɡ l iː n ɔɪ d / or / ˈ ɡ l ɛ n ɔɪ d / (both are common) and is from Greek: gléne, "socket", reflecting the shoulder joint's ball-and-socket form. [1]
Superior part of medial border of scapula: Artery: Dorsal scapular artery: Nerve: Cervical nerve (C3, C4) and dorsal scapular nerve (C5) Actions: Elevates scapula and tilts its glenoid cavity inferiorly by downwardly rotating the scapula: Identifiers; Latin: musculus levator scapulae: TA98: A04.3.01.009: TA2: 2234: FMA: 32519: Anatomical terms ...
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.
Infraspinatous fossa Left scapula. Dorsal surface. Infraspinatous fossa shown in red. Left scapula. Dorsal surface. Infraspinatous fossa labeled at center. Details Identifiers Latin fossa infraspinata TA98 A02.4.01.008 TA2 1151 FMA 23272 Anatomical terms of bone [edit on Wikidata] The infraspinous fossa (infraspinatus fossa or infraspinatous fossa) of the scapula is much larger than the ...
In human anatomy, the acromion (from Greek: akros, "highest", ōmos, "shoulder", pl.: acromia) is a bony process on the scapula (shoulder blade). Together with the coracoid process, it extends laterally over the shoulder joint. The acromion is a continuation of the scapular spine, and hooks over anteriorly.