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 ?
The rotatory action of the scapula is made possible by the upper and middle parts contributing to upward rotation of the scapula and abduction of the arm at the glenohumeral joint and elevation of the arm above the shoulder level.
The midpoint of the spine of the right scapula was determined and a point 2.5 cm lateral and cephalad to this point was marked.
The tables below present the data on the electrical parameters such as dielectric constant ([epsilon]'), dielectric loss ([epsilon]"), resistivity ([rgo]) and conductivity (K) of bovine femur, tibia, humerus, radius /ulna (fore arm), metacarpus, metatarsus, scapula, skull, pelvis, rib, and backbone taking 10 samples of each in wet / normal condition (table 1) and oven dried condition (table 2).
In a study of 11,500 patients from two trauma centers, 92 patients with scapula fracture were compared with 81 matched controls.
A custom-designed device called a digitizing stylus recorded the positions of the scapula, upper arm, and chest as the participant placed his or her hand along marked points on the wheelchair's pushrim.
Although none of the existing reports predicts a relation between CT gray value and apparent density for scapular trabecular bone, a similar linear relationship can be expected for scapula trabecular bone.
(19) Muscle flexibility of the levator scapula was measured by having the subject sit in a mid-back height chair with the operator verbally assisting them into the ideal postural alignment, as stated by Kendall et al.
Adriaenssens, N.; De Ridder, M.; Lievens, P.; Van Parijs, H.; Vanhoeij, M.; Miedema, G.; Voordeckers, M.; Versmessen, H.; Storme, G.; Lamote, J.; et al Scapula alata in early breast cancer patients enrolled in a randomized clinical trial of post-surgery short-course image-guided radiotherapy.
Variations of shape and size of glenoid cavity of scapula is important in order to understand of shoulder dislocation, rotator cuff disease and to determine the meticulous size of the glenoid component in the shoulder arthroplasty.
The oncologist noted that, in addition to the findings on the left scapula fracture, a right upper lobe nodule was also reported but no further investigation had been arranged.
Scapula also known as the shoulder blade is a large triangular, flat bone which is situated in the posterolateral aspect of the chest wall overlapping the second to seventh ribs.
The 21-year-old suffered a fractured scapula in only his second appearance for the Rentruck Aces in the away leg of their Charity Shield clash against Swindon after coming down hard in his second ride.