scapula

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scapula

1. either of two large flat triangular bones, one on each side of the back part of the shoulder in man
2. the corresponding bone in most vertebrates

Scapula

 

the flat triangular bone adjacent to the posterolateral surface of the thoracic wall and vertically occupying the space between the second and seventh ribs.

The upper margin of the scapula has a notch through which blood vessels pass. The outer corner has an oval depression, the glenoid cavity, for articulation with the head of the humerus. The articular surface passes through the neck and into the shaft of the scapula. There is a tuberosity above and below the glenoid cavity to which the heads of the shoulder muscles (triceps and biceps) are attached. The spine of the scapula passes obliquely along the posterior surface of the bone and ends in the acromial process, which has a platform for articulation with the clavicle. The coracoid process, at the outer corner of the scapula, serves for the attachment of the pectoralis minor and coracobrachialis muscles and the short head of the biceps.

scapula

[′skap·yə·lə]
(anatomy)
The large, flat, triangular bone forming the back of the shoulder. Also known as shoulder blade.
References in periodicals archive ?
6] In some animals, this suprascapular notch is always bridges by bone in place of ligament [7] Overhead abduction of shoulder joint causes traction on this suprascapular nerve, which may compress it against superior border of scapula.
Each scapula is observed carefully for complete or incomplete ossification of suprascapular ligament on superior border of scapula.
The suprascapular notch is a depression on the lateral part of superior border of scapula running medial to the coracoid process.
Study of variations in the shape of the suprascapular notch in Dried Human Scapula.
Each scapula was observed for the absence of the suprascapular notch.
The incidence was more prevalent on left side scapula (10.