Scapula bone

The shoulder is made up of three bones: • The scapula (shoulder blade) • The clavicle (collar bone) • The humerus (arm bone) These bones are joined together by soft tissues (ligaments, tendons, muscles, and joint capsule) to form a platform for the arm to work. The shoulder is made up of three joints: • The glenohumeral joint • The acromioclavicular joint • The sternoclavicular joint This illustration highlights the bones and other major components of the shoulder. The shoulder also has one articulation (place where it joins with another structure in the body), which is the relationship between the scapula (shoulder blade) and the chest wall. The main joint of the shoulder is the glenohumeral joint. This joint is made up of a ball (the humeral head) on a golf-tee-shaped joint (the glenoid of the scapula). The bones of the shoulder are covered by several layers of soft tissues: • The top layer is the deltoid muscle, a muscle just beneath the skin, which gives the shoulder a rounded appearance. The deltoid muscle helps to bring the arm overhead. • Directly beneath the deltoid muscle is sub-deltoid bursa, a fluid-filled sac, similar to a water balloon. • The next layer deep (below the subdeltoid bursa) is the rotator cuff, which is a set of four tendons that help assist with shoulder motion. Description There are many types of shoulder injuries: • Fractures are broken bones. Fractures commonly involve the • Dislocations occur when the bones on opposite sides of a joint do not...

Disclaimer: Results are not guaranteed*** and may vary from person to person***. Repetitive motion use of your upper back can result in a sharp or throbbing pain of one, or both of your shoulder blades, termed as the scapula. There are several major bone, muscle, and tissue groups that form in this region. Injury or damage to any one of these connections can lead to scapular pain. We will discuss how to treat scapula pain with home remedies, depending on the cause, Scapula pain is not to be confused with shoulder pain, despite the physical connection of the two. Pain in the shoulder blade does not mean you will suffer pain in the shoulder region. The scapula is the triangle-shaped bones in your upper back and is protected by a group of 17 muscles. These muscles allow for movements such as upward and downward rotation, elevation, depression, protraction, and retraction movements, as well as anterior and posterior tipping. Physical problems with one of the scapula muscles can hinder movement. What Causes Scapula Pain? The bones, muscles, joints, tendons, and tissue located in the upper back that serve the scapula can become inflamed, damaged, or affected by disease. This can lead to mild to severe shoulder blade pain. Pain stemming from the scapula may also be caused indirectly by back and cervical issues. Bone Due to the protection it receives, the scapula bones are not easily fractured as other bones in the body. It is thought of all bone fractures that occur, only one per...

Article: • • • • • • • • Images: • Gross anatomy Osteology The main part of the scapula, the body, consists of a somewhat triangular-shaped flat blade, with an inferiorly pointing apex, referred to as the inferior angle as well as lateral and superior angles. The scapula is described as having superior, medial, and lateral borders. Posteriorly, the scapula is divided into a supraspinous fossa and infraspinous fossa by the scapular spine. Anteriorly, on the costal surface, is the shallow subscapular fossa. Laterally is the Articulations • acromion: clavicle (forming the • Attachments Musculotendinous • supraspinous fossa: • infraspinous fossa: • subscapular fossa: • transverse scapular ligament and adjacent superior border of blade: inferior belly of • acromion: acromial part of • scapular spine: spinous part of deltoid muscle, trapezius • coracoid process: • lateral border (margo lateralis): • vertebral border (posterior): • inferior angle: teres major muscle, a small slip of • supraglenoid tubercle: long head of biceps muscle • infraglenoid tubercle: long head of Ligamentous • • • • • • Arterial supply The scapula is surrounded by an arterial anastomosis, the • • • branches of Variant anatomy • • • • 5 • Development See " Related pathology • • • • • • • • • • • • • Fun fact 17 muscles attach to the scapula (in alphabetic order): • • • • • • • • • • • • • • • • • • 1. Putz R, Pabst R, editors. Atlas van de menselijke anatomie. 2nd ed. Houten: Bohn Stafleu van Loghum; 2000....

Two important arteries, the axillary artery and the subclavian artery, run anterior to the scapula and posterior to the clavicle. Additionally, due to the location of the scapula on the axilla, there are many lymph nodes and lymph networks in this area which assist with fluid drainage and balance within the body. kazuma seki / Getty Images Function The scapula is responsible for several motions which are integral to daily movement and smooth upper extremity motion. Protraction and retraction of the scapula assist with movement of the pectoral girdle and chest muscles both forward and back, respectively. Elevation and depression of the scapula assist with the movement of the entire shoulder capsule up and down, seen in motions such as shrugging of the shoulders. Upward rotation and downward rotation of the scapula assist with stabilization of the shoulder capsule during excessive arm motion. Upward rotation of the scapula occurs when the arm moves both up and outward simultaneously. This seemingly simple motion requires significant shoulder stabilization due to the intricacies of the humerus and scapula. Similar stability is required for downward rotation of the scapula when the arm moves both down and inward simultaneously. An additional mechanism the scapula plays a large role in is the scapulothoracic rhythm, which is the pattern of muscle contractions and motion that occurs between the scapula and the thoracic vertebra. Similar to the scapulohumeral rhythm, this relatio...

What is a scapula fracture? The scapula, or shoulder blade, is the bone located in the back of your shoulder between the shoulder and the spine. It is generally easy to feel. Fractures of the scapula are most often caused by direct trauma from the back or side. What are the symptoms of a scapula fracture? • Pain at rest • Pain when moving the arm • Swelling • Severe bruising What is the treatment for a scapula fracture? Most fractures of the scapula can be treated without surgery. Treatment involves The sling is usually kept for comfort for the first two weeks with subsequent increase of the shoulder’s range of motion. However, there are no restrictions on shoulder motion: mobility, weight-bearing and weight lifting as tolerated. Fractures that require surgery usually have fracture fragments involving the shoulder joint or an additional fracture of the clavicle. Surgery involves fixation of the fracture fragments with plates and screws.

At the shoulder, three major bones meet and create a 90-degree angle: • Clavicle: Also known as the collarbone, the clavicle extends across the front of the shoulder from the sternum to the scapula. It helps stabilize the shoulder’s movements. • Scapula: More commonly known as the shoulder blade, the scapula is a flat triangular bone located in the upper back. It connects with the collarbone at the front of the body. • Humerus: The largest bone of the arm, the humerus connects to the scapula and clavicle in the shoulder. The head of the bone has a ball-like knob to create a ball-and-socket joint with the scapula. The junctions of these three bones and the sternum (chest bone) form three joints: • Glenohumeral joint: This shallow ball-and-socket-style joint created by the humerus and scapula allows the arm to rotate circularly and to move up and out from the body. It is surrounded by soft tissue and strengthened by fibrous ligaments. • Acromioclavicular (AC) joint: This joint forms the highest point of the shoulder and provides the ability to raise the arm above the head. The meeting of the scapula and clavicle forms it. • Sternoclavicular joint: This joint is at the center of the chest where the clavicle meets the sternum. It allows the clavicles to move. Each joint is surrounded by: • cartilage, to pad the meetings of the bones; • ligaments, to connect the bones; • muscles; and • tendons, to attach the muscles to the bones. The collection of muscles and tendons in the sho...

When your shoulder blades aren’t stable, you may experience a shoulder disorder called scapular dyskinesis. It is characterized as losing a normal range of motion in your shoulder blades. In some cases, it is a condition of its own. Other times, scapular dyskinesis is a symptom of another health condition or Understanding Scapular Dyskinesis Your shoulder blade is important for movement and range of motion in your shoulders. Also called the scapula, your shoulder blades provide stability to your rotator cuff. If you sustain an injury to your soft tissue, muscle, or bone around your shoulder, it may impact your shoulder blade too. Scapular dyskinesis is easily identified because it causes your shoulder blades to stick out abnormally either during rest or activity. Scapular dyskinesis is also called winging because your shoulder blades stick out like wings on your back. Although the condition itself may not be painful, it can leave you at a greater risk of injury. There are six factors that may contribute to scapular dyskinesis: • Damage to your nerves • Loss of flexibility • Damage to your muscles • Weakness in your core, hips, or legs • Weak bones or bone fractures‌ • Damage to your joints Your scapula has a normal rotation pattern of: • External rotation • Posterior tilt • Upward rotation‌ • Medial translation Damage may hinder a piece within this movement sequence. Playing sports increases your risk of the condition because more than 90% of unidirectional cases result fr...