scapula


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scapula

 [skap´u-lah] (L.)
the flat triangular bone in the back of the shoulder. See anatomic Table of Bones in the Appendices.
winged scapula one having a prominent vertebral border usually owing to weakness of one of the muscles holding the scapula in place.

scap·u·la

, gen. and pl.

scap·u·lae

(skap'yū-lă, -lē), [TA]
A large triangular flattened bone lying over the ribs, posteriorly on either side, articulating laterally with the clavicle at the acromioclavicular joint and the humerus at the glenohumeral joint. It forms a functional articulation with the chest wall, the scapulothoracic articulation.
[L. scapulae, the shoulder blades]

scapula

(skăp′yə-lə)
n. pl. scapu·las or scapu·lae (-lē′)
Either of two large, flat, triangular bones forming the back part of the shoulder. Also called shoulder blade.

scap·u·la

, pl. scapulae (skap'yū-lă, -lē) [TA]
A large, triangular, flattened bone lying over the ribs, posteriorly on either side, articulating laterally with the clavicle at the acromioclavicular joint and the humerus at the glenohumeral joint. It forms a functional joint with the chest wall, the scapulothoracic joint.
Synonym(s): shoulder blade.
[L. scapulae, the shoulder blades]

scapula

(skapu-la') [L., shoulder blade]
Enlarge picture
SCAPULA
The large, flat, triangular bone that forms the posterior part of the shoulder. It articulates with the clavicle and the humerus. Synonym: shoulder blade See: illustration; triceps

plane of scapula

The angle of the scapula in its resting position, normally 30° to 45° forward from the frontal plane toward the sagittal plane. Movement of the humerus in this plane is less restricted than in the frontal or sagittal planes because the capsule is not twisted.
See: Scapula Instability

tipped scapula

A condition in which the inferior angle of the scapula is prominent, usually the result of faulty posture and a tight pectoralis minor muscle. Tipping is a normal motion when a person reaches with the hand behind the back.

winged scapula

Condition in which the medial border of the scapula is prominent, usually the result of paralysis of the serratus anterior or trapezius muscles. Synonym: angel's wing

scapula

The shoulder blade. A flat, triangular bone with a prominent, near-horizontal raised spine, lying over the upper ribs of the back. At its upper and outer angle the scapula bears a shallow hollow with which the rounded head of the upper arm bone (the humerus) articulates. The spine ends in a bony process, the coracoid process, the end of which connects with the outer end of the collar bone (clavicle).

scapula

the shoulder blade. see PECTORAL GIRDLE.

scap·u·la

, pl. scapulae (skap'yū-lă, -lē) [TA]
Large triangular flattened bone lying over the ribs, posteriorly on either side, articulating laterally with clavicle at the acromioclavicular joint and humerus at the glenohumeral joint.
[L. scapulae, the shoulder blades]
References in periodicals archive ?
The pain of shoulder syndrome along the upper scapular border has been attributed to the overstretch and fatigue of the levator scapula and rhomboid muscles that occur when denervation of the trapezius leads to loss of scapular support and stability.
Although there is no data about inadvertent stimulation or block of the brachial plexus during suprascapular nerve block, it is always possible that the needle may lie in the notch or pass over the superior border of the scapula during an attempt to contact bone (5).
Results on electrical parameters of bovine femur, tibia, humerus, radius /ulna (fore arm), metacarpus, metatarsus, scapula, skull, pelvis, rib and backbone reveal the considerable variation in different bone samples and also in different specimens of the same bone, obtained from the various parts of the bone.
The goal of this study was to develop a technique that may be useful to detect bone geometry and pixel gray value from contour data of CT-scan slice of the scapula. The pixel gray value can be calibrated in terms of bone density, which can be in turn related to bone elastic modulus and strength.
The sitting position and inclinometry techniques for measuring muscle flexibility of the upper trapezius were the same as for the levator scapula except that testing of the upper trapezius flexibility was performed with the subject's head facing forward.
Iliev observed that the glenoid notch was present in 92% of the male and in 50% of the female scapula (19).
The present study analyses the morphometry of the acromion process of scapula, which may help orthopaedicians during surgical repair around the shoulder joint.
However stemming from the powerlifting and fitness communities, (1, 5) depression of the scapula was also included in this corrective strategy.
The second volume surveys specific fractures of the scapula and clavicle, humerus, forearm and hand, pelvis and acetabelum, femur and periprosthetic fractures, knee, tibia, and malleoli and foot.
We conducted this study to quantify the impact of two sizes (8.5 mm and 12.5 mm) of anterior glenoid defects on rTSA glenoid baseplate fixation in a composite scapula model using the ASTM F 2028-14 reverse shoulder glenoid loosening test method.
The scapula is fixed to a frame and cables used to represent the anterior, middle, and posterior heads of the deltoid.