The lateral third of the clavicle serves as attachments for the deltoid and trapezius muscles anteriorly and posteriorly, respectively. Attachments of Pectoralis Major Muscle: Origin & Insertion. In females, the clavicle is shorter, lighter, thinner, smoother and less curved compared to … Scapula: The scapula is also known as the shoulder blade. Name the 2 muscle attachment sites on the radius. This is an online quiz called IPAP 16-1 Right clavicle muscle attachments There is a printable worksheet available for download here so you can take the quiz with pen and paper. Two muscles are attached to the lateral third of the clavicle: The trapezius muscle, which is attached along the posterior surface of the lateral third of the clavicle. The female clavicle is shorter, thinner and less curved than the male clavicle. ; Inferior surface has a rough impression near its medial surface which provides attachment to costoclavicular ligamen t.. A shallow groove is present which … Origin: (proximal attachments) a. Clavicular head: medial half of the clavicle. Search Help in Finding Right Clavicle Muscle attachments - Online Quiz Version Insertion: (distal attachments) a. With trigger points in this muscle, you might feel pain all the way down your arm.. The sternocleidomastoid muscle is a two-headed neck muscle, which true to its name bears attachments to the manubrium of sternum (sterno-), the clavicle (-cleido-), and the mastoid process of the temporal bone (-mastoid).. 1. The relative paucity of soft tissue attachments in the middle third may have an influence on the incidence of fractures in this region and certainly influences the deformity after fracture. b. Sternal head: sternum, upper costal cartilages (1-6), and the aponeurosis of the external oblique. Muscle attachments. Intermediate Back Muscles and c. Deep Back Muscles Superficial Back Muscles Action Movements of the shoulder. It is classed as a long bone and can be palpated along its length.In thin individuals, it is visible under the skin. The clavicle also acts as a bony framework for muscle origin and insertion. It is worth noting that subclavius is the only muscle that has its main attachment in the middle third of the clavicle. Upper surface – lateral third of the upper surface of the bone is marked by impressions for the attachments of the deltoid and trapezius muscles; medial two-thirds of the bone is marked by impressions for the attachments of pectoralis major and sterno-cleido … A total of five muscles are attached to the clavicle, found distributed at either the lateral third or medial two thirds of the bone. Occasionally, the clavicle is pierced by a branch of the supraclavicular nerve. It is a long, bilateral muscle of the neck, which functions to flex the neck both laterally and anteriorly, as well as rotate the head contralaterally … The flat, acromial end of the clavicle is broader than the sternal end. The Deltoid originates from both the scapula and the clavicle, so just like the Trapezius, it’s attached to the spine of the scapula. The clavicle is thicker and more curved in manual workers, and the sites of muscular attachments are more marked. The human body has two of these muscles, each inserting into the inferior of the clavicle … They are thin muscles, sculpted down the neck and towards the shoulders, attaching to both scapula (shoulder blade) and clavicle (collar bone) of each arm.. trapezius keeping it simple Please download the latest version of your preferred browser. Muscle and ligament attachments. T6-S5 vertebrae, Illiac crest, Ribs 9-12: Name the 3 functions of the deltoid The clavicle has quite peculiar features as well. These surface features are attachment sites for muscles and ligaments of the shoulder. Origin: It has two head. The acromial end has a rough inferior surface that bears prominent lines and tubercles. Muscles of the Scapula Coracobrachialis arises from the medial part of the tip of coracoids process. The clavicle has three main functions: Attaches the upper limb to the trunk as part of the ‘shoulder girdle’. Here we will discuss the different functions, the anatomical landmarks, and the muscle attachments of this long bone. The clavicle is an attachment point for several muscles. The right clavicle is usually stronger and shorter than the left clavicle. Superior surface: The anterior deltoid originates on the anterior aspect and assists in flexion of the shoulder while one of the insertion sites for the trapezius muscle is located at the posterior aspect.The trapezius predominantly is responsible for stabilizing the scapula. Name the muscles & ligaments attached and structures related to the medial 2/3rd of clavicle. The back muscles can be three types. Clavicular head: Anterior surface of medial half of clavicle; Sternal head: Anterior surface of manubrium and sternum up to sixth costal cartilages The subclavius muscle is a relatively minor muscle located deep within the chest. muscles 5 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. Attachments: The inferior belly of the omohyoid arises from the scapula. It runs superomedially underneath the sternocleidomastoid muscle. Muscle Attachments. Another muscle, the Pectoralis minor, comes from the anterior chest wall, to be inserted into the coracoid process of the scapula. Along with the pectoralis major and pectoralis minor muscles, the subclavius muscle makes up the anterior axioappendicular muscles, also known as anterior wall of the axilla. Muscle Attachments. Clavicle bone has a lot of muscle attachments which insert on the upper and under the surface of the bone. Attachments. The medial end of each clavicle is a smooth, rounded cylinder known as the sternal extremity, which forms the sternoclavicular joint … The left and right trapezius muscles form the most superficial muscle layer from mid-back to the base of the skull. The darker the red in the picture below, the more common it is to feel pain in the respective area when trigger points are present in this muscle. The Sternoclavicular Joint (SC joint) is formed from the articulation of the medial aspect of the clavicle and the manubrium of the sternum. The SC joint is the only true articulation connecting the upper limb to the axial skeleton, and that it’s the least constricted joint in the human body[1]. It articulates with the humerus at the glenohumeral joint, and the clavicle at the acromioclavicular joint. The clavicle helps hold the shoulder out to the side while allowing the scapula to still move around. This large triangular muscle covers the glenohumeral joint and gives the shoulder its rounded-off shape. The clavicle (collarbone) extends between the manubrium of the sternum and the acromion of the scapula.. It is a triangular, flat bone, which attachment for 17 muscles. Learn vocabulary, terms, and more with flashcards, games, and other study tools. It makes up the bulk of the chest muscles and rests under the breast. The clavicle articulates with the acromion at the acromioclavicular joint laterally and the sternum at the sternoclavicular joint medially. From here, the superior belly ascends to attach to the hyoid bone. It is attached to the superior belly by an intermediate tendon, which is anchored to the clavicle by the deep cervical fascia. The clavicle has multiple attachments for musculature that should be considered anatomically. The clavicle varies more in shape than most other long bones. It may even radiate into the thumb and first two fingers. Each clavicle runs transversely and forms a joint with the sternum on its medial end and the scapula on its lateral end. Deltoid arises […] Articulations. Move your mouse over a highlighted region to see which muscles attach there. A type IIB fracture of the distal clavicle. Watch this anatomy lecture and pass your exams with flying colours! Search Help in Finding IPAP 16-1 Right clavicle muscle attachments - Online Quiz Version Pectoralis Major Muscle: The pectoralis major is a thick, fan-shaped muscle, located at the chest. Attachments. Intermediate Back Muscles […] Try these free muscle labeling diagrams. Inferiorly the conoid and trapezoid components of the CC ligament provide stability between the clavicle and the coracoid process of the scapula. Muscles and ligaments that attach to the clavicle include: Attachment on clavicle: Muscle/Ligament: Other attachment: Superior surface and anterior border : Deltoid muscle: deltoid tubercle, anteriorly on the lateral third Superior surface : Trapezius muscle: Superior surface is smooth and is covered by skin and platysma, medially it provides attachment to sternocleidomastoid muscle. The clavicle is thicker and more curved in manual workers, and the sites of muscular attachments are more marked. The clavicle is a long, doubly curved bone that connects the arm to the body, located directly above the first rib. CLAVICLE Majority of muscle attachment is at the shaft of the clavicle. a. Superficial Back Muscles b. It acts as a strut to keep the scapula in place so the arm can hang freely. The clavicle connects the sternum (breastbone) to the scapula via the acromion. The right clavicle is usually stronger and shorter than the left clavicle. Pain Patterns & Symptoms of the Subclavius Muscle 1.1 Pain patterns. The upper third of the trapezius inserts on the superior surface of the outer third of the clavicle, opposite the site of origin of the clavicular head of the deltoid along its anterior edge. It is one of four joints that compose the Shoulder Complex.  … Lateral third is flat so has two borders and two surfaces - anterior border: deltoid muscle - posterior border: trapezius muscle - superior surface: no attachment - subcutaneous - inferior surface: no muscle attachment - has conoid tubercle and trapezoid line Medial two-thirds has four surfaces - … Structurally, the clavicle can be divided into three parts: medial end, lateral end, and shaft. The clavicle is a doubly-curved long bone (the only horizontal long bone in the human body) that connects the arm to the body (), located directly above the first rib.Medially, it articulates with the manubrium of the sternum (breast-bone) at the sternoclavicular joint.At its lateral end it articulates with the acromion of the scapula (shoulder blade) at the acromioclavicular joint. Radial tuberosity, Styloid process: What is the proximal (origin) attachment of Pectoralis major (sternal head) Sternum, Costal Cartilages 1-6: What are the proximal attachments of Latissimus dorsi (coughing muscle)? Start studying Bony Landmarks/Muscle Attachments - Scapula, Clavicle, Sternum. ; Protects the underlying neurovascular … In type IIA, both conoid and trapezoid ligaments are on the distal segment, while the proximal segment, without ligamentous attachments, is displaced. 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