attachments of scapula
Although sturdy in cartilagenous fish, both plates are generally small in most other fish, and may be partially cartilagenous, or consist of multiple bony elements. Deltoid tubercle of spine of the scapula . Back Muscles: The muscles of the back that work together to support the spine, help keep the body upright and allow twist and bend in many directions. The coracoid process is an anteriorly projecting hook-like process on the superolateral edge of the scapula that projects anterolaterally. Scapula has various bony projections for attachment of muscles, ligaments and other soft-tissue structures.These include the scapular spine, acromion process, coracoid process, scapular notch, lateral scapular spine, and glenoid fossa. The suprascapular vessels and nerve passageway to it. © 2017 Actforlibraries.org | All rights reserved The scapula and arm are connected to the body by multiple muscle and ligament attachments. The scapula is an important bone as each scapula provides a point of attachment for a number of muscles that make up the arm and shoulder. SCAPULA Provide attachment for three different groups of muscles. The scapula ossifies from one primary center including seven secondary centers. It is marked by three longitudinal ridges. Scapular fractures involving the anatomical neck of the scapula and the surgical neck of the scapula. Insertion: (distal attachments) a. Medial border of the scapula between spine and superior angle. Due to its flat nature, the scapula presents two surfaces and three borders; the front-facing costal surface and the rear-facing dorsal surface, as well as the superior, lateral, and medial borders. In this situation, the sides of the scapula nearest the spine are located outward and backward. Muscles attached to the three borders of scapula Medial border – Costal surface (including that of inferior angle) provides attachment( insertion) to serratus anterior . The levator scapulae, rhomboideus major and minor muscles comprise of double folds at the scapular end. Popular Scapula 3D models View all No results Available on Store Ligaments of Shoulder Girdle 1.6k Views 0 Comment 8 Like Unlike Thanks! 2. Start studying Attachments of Scapula, Clavicle, Humerus, Forearm. How To Protect Your Eyes From Electronics Devices? Its attachments at the coracoid process of the scapula and the anterior surface of the shaft of humerus make coracobrachialis a strong adductor of the arm. The anterior surface of the scapula is known as the ‘costal’ surface. Two more muscles that are inserted into the scapula are the Serratus anterior and the Pectoralis minor. The other 10 muscles are all inserted into the humerus. Scapula, either of two large bones of the shoulder girdle in vertebrates. Costal aspect of the scapula with attachments of muscles mapped out. A bony ridge, known as the spine of the scapula, rises from the posterior surface of the scapula along its medial side. Side determination of scapula || Attachment of scapula || scapula … It articulates with the humerus at the glenohumeral joint, and the clavicle at the acromioclavicular joint. The coracoacromial ligament is connected to the lateral border of the coracoids process and to the medial side of the tip of the acromion process of the scapula. Deltoid arises from the lower border of the crest of the spine and from lateral border acromion. It articulates with the humerus at the glenohumeral joint, and the clavicle at the acromioclavicular joint. The Trapezius is inserted into the spine of the scapula, wheras the other 3 are inserted into its medial border, which helps them achieve their function the best. The three borders are: Medial, Lateral and Superior borders. Surfaces 1. The Serratus anterior is inserted to the whole length of the medial border of the scapula, anterior to the three other muscles mentioned above. In order to do so, muscles originate from and are inserted into the scapula, connecting it to the humerus of the arm, the vertebral column of the axial skeleton and to other bones of the body, which helps the bone achieve its optimum function, in accordance with the structure it’s connected to. The scapula is the large triangular bone connecting the humerus, or upper arm bone, to the clavicle, or collar bone. The human skeleton, consisting of 206 bones, is organized into two parties, the first being the axial skeleton, to which the appendicular skeleton, the second group, is attached. This shows how the scapula is of an important role in the muscular function of the arm, as the muscles attached to the humerus connecting it to the scapula are capable of rotating, extending, abduction the arm as well as bringing about other types of movements. 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