Overhanging the glenoid cavity is a beaklike projection the coracoid process which completes the shoulder socket. The scapula is a flat triangular bone and consists of three processes.
The glenoid has two bony tubercles at the superior and.
Glenoid process of scapula. The Glenoid Cavity In Scapula Anatomy. In this image you will find scapula anterior view superior border superior border scapular notch coronoid process infraglenoid tubercle subscapular fossa lateral border an inferior angle in it. You may also find scapula posterior view lateral angle acromion superior border supraspinous fossa a.
Morphological variations of the scapula are also quite common. These usually apply to the acromion glenoid process and subscapular notch 2023 34 3940424344. In contrast no.
The scapula is a flat triangular bone and consists of three processes. The glenoid process the acromial process along with the coracoid process. The lateral angle of the scapula is represented by a shallow somewhat comma-shaped glenoid cavity which interconnects along with the head of the humerus in order to create the glenohumeral joint.
Glenoid process of scapula - Processus glenoideus scapulae Anatomical Parts. Illustrated anatomical parts with images from e-Anatomy and descriptions of anatomical structures. The glenoid or glenoid cavity or fossa is the shallow depression of the scapula found on the lateral angle.
Gross anatomy Attachments glenoid labrum. The cavity has a fibrocartilaginous structure on its margin called the glenoid labrum which. The scapula provides the glenoid fossa glenoidsocket.
Both the scapula and the coracoid process contribute to the articular surface. The muscles of the scapula arise from the anterior and posterior spinous fossae on either side of the spine and from the deep surface of the bone. The deep surface is ridged by the attachments of subscapularis and serratus anterior.
The scapula ossifies from two major centres one for the scapula and one for the coracoid process. In scapulapresents a shallow cavity the glenoid cavity which articulates with the head of the bone of the upper arm the humerus to form the shoulder joint. Overhanging the glenoid cavity is a beaklike projection the coracoid process which completes the shoulder socket.
To the margins of the scapula are attached Read More. The lateral angle of the scapula narrows to form the scapular neck which then connects the glenoid to the scapula. The most lateral aspect of the glenoid is the glenoid cavity Fig.
43 which is pear-shaped concave fossa that narrows superiorly at the anterior glenoid notch with the inferior 23 of the glenoid approximating a circle 710. The glenoid has two bony tubercles at the superior and. The primary actions of levator scapulae muscle are elevation adduction of the scapula and tilting the glenoid cavity inferiorly by rotating the scapula downwardly.
It rotates the cervical spine ipsilaterally. Scapula ossifies from 1 primary centre and 7 secondary centres of ossification 2 for coracoid process 2 for acromion1 each for glenoid cavity inferior angle and medial border. Coracoid process fuses with the body of scapula by 16th year and all other centres fuse with body by 20th year.
The scapula is a triangular bone which consists of the scapular body the scapular spine the scapular neck the acromion the glenoid fossa and the coracoid process. The dorsal aspect of the scapula is divided by the scapular spine into the supraspinous and infraspinous fossa where the supraspinatus and infraspinatus muscles attach. The osseous components of the scapula which consist of the body and spine coracoid process acromion process glenoid and inferior angle arise from several ossification centers.
67 At birth the body and spine form one ossified mass. However the coracoid process acromion process glenoid and inferior angle are all cartilaginous. The acromion process is the second process of the scapula that forms the glenoid cavity.
This process extends superiorly to articulate with the clavicle. The posterior side of the scapula also. At birth a large part of the scapula is osseous but the glenoid cavity the coracoid process the acromion the vertebral border and the inferior angle are cartilaginous.
From the 15th to the 18th month after birth ossification takes place in the middle of the coracoid process which as a rule becomes joined with the rest of the bone about the 15th year. The acromion process is a palpable lateral and enlarged extension of the posterior spine of the scapula which projects anterolaterally to the spine. It arches over the glenohumeral joint and articulates with the lateral acromial end of the clavicle to make up the synovial acromioclavicular joint.
The scapula starts to develop in the embryonic stage and ossifies from one primary and seven secondary centers. The primary ossification center appears near the glenoid cavity during the 8th week of fetal development. Out of seven the first secondary center appears in the middle of the coracoid process during the first year and fuses by 15.
Glenoid fractures are rare 1 and relatively little is known about their mechanism fracture pattern and optimal treatment strategies. Fractures that involve the glenoid fossa may occur as a result of dislocation and when present bony avulsions and rim fractures are strongly associated with anterior shoulder dislocations. 23 More classical fractures of the glenoid can be extra.
To determine whether medial displacement of the glenoid with respect to the midline occurs in scapula fractures and the potential impact on fracture reduction technique. Level I trauma medical center. Seventy patients who sustained scapula fractures from 2004 to 2008 and a comparison group of 47 normal patients without scapula.
Glenoid cavity is prolonged forwards under the tuber scapulae. Small coracoid process is present. Note- the shoulder girdle has three bones- the scapula coracoid and the clavicle.
The clavicle is embedded in the brachio-cephalicus muscle in front of the scapulo-humeral articulation. The lateral or glenoid angle of the scapula. It is also called the glenoid angle or head of the scapula.
It is the thickest part of the scapula. It consists of three borders that include. It is the thinnest and shortest one found extending from the superior angle to the base of the coracoid process.
In animals it also refers to the cranial border. The scapula is a flat triangular bone that links the axial skeleton to the upper extremity via only muscular attachments. The scapula provieds the origin and mechanical leverage for the deltoid muscle the prime mover of the shoulder.
There are two palpable bony landmarks the acromion and the coracoid process.