Other muscles that aid in shoulder movement include: 1 Infraspinatus: This rotator cuff muscle helps with the raising and lowering of the upper arm. 2 Triceps brachii: This large muscle in the back of the upper arm helps straighten the arm. 3 Pectoralis major: This large fan-shaped muscle stretches from the armpit up to…

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13,987 shoulder anatomy stock photos and images available, or search for shoulder anatomy muscles to find more great stock photos and pictures. Man with extended arm. Illustrated representation of the structure and musculature of the human arm. Studio man portrait. shoulder anatomy stock pictures, royalty-free photos & images

The shoulder is a complex combination of bones and joints where many muscles act to provide the widest range of motion of any part of the body. Numerous muscles help stabilize the three joints of the shoulder while giving it motion.

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Shoulder X-rays are common investigations in every Emergency Department, typically in the context of trauma, with shoulder dislocations being the most common pathology. An important distinction to note is what we mean when we request a “shoulder X-ray”. In most clinical scenarios this refers to a radiograph of the glenohumeral joint.

Standard acromioclavicular joint radiographs consist of a clavicle seriesincluding an AP and cephalic angled oblique (10-15º) views. Additional weight-bearing stress viewsmay be of benefit if: initial radiographs are normal, but an injury is suspected

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Working on the pectoral girdle, the trapezius, rhomboid major, and levator scapulae muscles of the back elevate the scapula to shrug the shoulders and move the scapula posteriorly (as in reaching back behind the body).

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Menu Acromioclavicular Joint Figure 5-1. Normal ACJ. Schematic drawing of an anterior view of the right shoulder. The normal ACJ contains a variable intra-articular disk that ranges from [A] complete[B] to meniscoid-like appearance. Figure 5-2. ACJ supporting ligaments. Schematic drawing of an anterior view of the right shoulder.

Typical shoulder X-ray views include: An axial view can also be used as an alternative to the scapula Y view if the patient is unable to tolerate the positioning required to obtain this view. Figure 1. A normal AP view 1 Figure 1.1.

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In the shoulder, branches of the brachial artery provide oxygenated blood to the muscles and bones. As muscles use the oxygen from the blood, it must be returned to the lungs to once again receive oxygen. This happens via veins. The major veins of the shoulder are:

The shoulder has several other important structures: The rotator cuff is a collection of muscles and tendons that surround the shoulder, giving it support and allowing a wide range of motion. The bursa is a small sac of fluid that cushions and protects the tendons of the rotator cuff.

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Shoulder radiographs are performed for a variety of indications including: shoulder trauma. bony tenderness at the glenohumeral joint/region. restriction of rotation. instability. suspected dislocation. AC joint injury.

When shoulder instability becomes recurrent, a complete radiographic study may help get to the diagnosis. Radiographs show osseous lesions of the humerus or glenoid in 95% of patients with chronic anterior instability.

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One of the most common surgical procedures for the shoulder is a rotator cuff repair. There are many ways to do this, and most surgeons have their preferred techniques.

In a typical shoulder replacement, a plastic lining is attached to the socket to allow smooth movement. The surgeon removes the top of the arm bone and inserts a metal stem with a ball on the end. However, if the rotator cuff is severely damaged, the joint may not be stable or work properly.

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Typical X-ray findings in posterior shoulder dislocation include: AP view: the glenohumeral joint will be widened and the humeral head will take on a classic “light bulb” appearance due to forced internal rotation of the humerus. Lateral view: the humeral head will lie posterior to the glenoid fossa.

The shoulder external rotation view is an additional projection to the standard shoulder series it is often combined with the internal rotation view to visualize the entirety of the humeral head. This projection best demonstrates the greater tubercle humerus in profile. Article:

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For that reason, and because of the dexterity of the shoulder joint itself, the musculature of the shoulder is complex, ranging from massive prime mover muscles to finer stabilizer and fixator muscles. The shoulder (or humeroscapular) joint is formed by the articulation of the head of the humerus with the scapula.

On the anterior side of the shoulder, the coracobrachialis, serratus anterior, pectoralis major, and pectoralis minor muscles work as a group to flex and adduct the scapula and humerus anteriorly toward the sternum. The latissimus dorsi and teres major on the posterior side extend and adduct the arm towards the vertebrae of the back.

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In a study of 120 patients, Strauss and colleagues 49 stated that a special set of x-rays could confirm the diagnosis of anterior shoulder instability with 95% accuracy. The x-rays were the anteroposterior view of the shoulder in internal rotation and the Hermodsson, axillary lateral, Stryker notch, Didiee, and West Point views.

Typical X-ray findings in posterior shoulder dislocation include: 1 AP view: the glenohumeral joint will be widened and the humeral head will take on a classic “light bulb” appearance due… 2 Lateral view: the humeral head will lie posterior to the glenoid fossa. More …

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13,987 shoulder anatomy stock photos and images available, or search for shoulder anatomy muscles to find more great stock photos and pictures. Man with extended arm. Illustrated representation of the structure and musculature of the human arm. Studio man portrait. shoulder anatomy stock pictures, royalty-free photos & images

Toggle Anatomy System. Surrounding the rotator cuff muscles are many groups of muscles that work together to produce the various movements of the shoulder. Located superior to the shoulder joint, the deltoid muscle works with the supraspinatus to abduct the arm at the shoulder. On the anterior side of the shoulder, the coracobrachialis,…

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Back View of shoulder muscles 1 Trapezius: Brings the shoulder blades together by retraction and enables elevation and depression… 2 Deltoid (posterior and middle head): Helps in the sideways movement of the upper arm known as… 3 Latissimus dorsi: Allows extension and medial rotation of the arm Image Source: en.wikipedia.org.

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13,987 shoulder anatomy stock photos and images available, or search for shoulder anatomy muscles to find more great stock photos and pictures. Man with extended arm. Illustrated representation of the structure and musculature of the human arm. Studio man portrait. shoulder anatomy stock pictures, royalty-free photos & images

Most shoulder motion occurs at the ball-and-socket glenohumeral joint, but for full motion of the shoulder, the acromioclavicular joint must also be functioning normally. The three bones of the shoulder are the: The scapula has one part that forms a socket for the ball-and-socket shoulder joint; this is called the glenoid.

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Top Symptoms: dizziness, spontaneous shoulder pain, pain in the back of the neck, tender muscle knot, general numbness Repetitive strain injury of the shoulder is caused by consistent repetitive use. Top Symptoms: shoulder pain from overuse, shoulder weakness, shoulder numbness

Symptoms include pain that worsens with movement of the arm and shoulder, especially following overuse, or injury. Swelling, redness, joint deformity, inability to move the arm, or severe pain should be seen right away by a medical provider. Shoulder pain with shortness of breath and/or pain or tightness in the chest can be signs of a heart attack.

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The glenohumeral articulation involves the humeral head with the glenoid cavity of the scapula, and it represents the major articulation of the shoulder girdle.[2] The latter also includes minor articulations of the sternoclavicular (SC), acromioclavicular (AC), and scapulothoracic joints.

The shoulder ligaments are tough, elastic bands of connective tissues. They connect bone to bone, support the shoulder joints and limit their movement, playing a vital role in passive shoulder stability. The shoulder is made up of a number of different joints, and each of these joints are supported by a number of ligaments.

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Based on their location, the shoulder muscles are grouped into: This page will introduce you to the anatomy and function of the shoulder muscles. Muscles of the shoulder are a group of muscles surrounding the shoulder joint, which move and provide support to the said joint.

The shoulder is a complex combination of bones and joints where many muscles act to provide the widest range of motion of any part of the body. Numerous muscles help stabilize the three joints of the shoulder while giving it motion.

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