Anatomy Of Left Shoulder

The labrum is a rim of cartilage that surrounds the socket of the shoulder joint. 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.

Rotator Cuff Full Thickness Tear Of The Left Shoulder Rotator Cuff Rotator Cuff Tear Shoulder Anatomy

The labrum also serves as the attachment of a major tendon in the shoulder the biceps tendon.

Anatomy of left shoulder. The shoulder joint is formed where the humerus upper arm bone fits into the scapula shoulder blade like a ball and. Medical Imaging Anatomy Course LEARN MORE. The glenohumeral joint is where the ball humeral head and the socket the glenoid meet.

The shoulder is a synovial articulation between the glenoid and the humeral head in which the shallow glenoid articulation is deepened an additional 50 by the fibrocartilaginous labrum that forms a rim around the perimeter of the glenoid. MR of the shoulder MRI of the shoulder. A ring of cartilage known as the labrum surrounds the glenoid fossa to extend the size of the socket while maintaining flexibility.

Left shoulder pain from a labrum tear usually develops after an injury but can develop gradually from wear and tear. Muscle Anatomy Of The Neck 12 photos of the Muscle Anatomy Of The Neck anatomy of the neck muscles and nerves anatomy of the posterior neck muscles muscle anatomy of the neck and shoulder muscle structure of the human neck muscles of the neck ct anatomy Human Muscles anatomy of the neck muscles and nerves. There are two main articulations in the shoulder region.

Muscles of the rotator cuff labeled on a sagittal MR slice. The shoulder is one of the largest and most complex joints in the body. The Anatomy of the Shoulder The shoulder is made up of two joints the acromioclavicular joint and the glenohumeral joint.

The glenohumeral joint and the acromioclavicular joint. The shoulder blade and part of the collar bone can also be seen. Articulated humerus clavicle and scapula bones showing human left shoulder joint anatomy in white.

The shoulder girdle includes three bonesthe scapula clavicle and humerus. All associated anatomical structures including the clavicle humerus acromioclavicular AC joint acromion biceps tendon subacromial bursa glenoid and glenoid fossa are depicted. The human shoulder is made up of three bones.

The labrum is a special layer of cartilage that lines the shoulder joint to help improve the stability of the shoulder. The primary function of the shoulder girdle is to give strength and range of motion to the arm. The glenoid fossa forms a very shallow socket so the muscles ligaments and cartilage of the shoulder joint reinforce its structure and help to prevent dislocations.

The socket of the shoulder joint is shallow and the labrum gives the socket more depth and thus more stability. The acromioclavicular joint is where the acromion part of the shoulder blade scapula and the collar bone clavicle meet. The glenohumeral joint is an articulation formed by the glenoid fossa of the scapula and the head of the humerus.

Located superior to the shoulder joint the deltoid muscle works with the supraspinatus to abduct the arm at the shoulder. The articulations between the bones of the shoulder make up the shoulder joints. Both the glenoid and the humeral head are covered by a layer of hyaline articular cartilage.

You will also find coracoid process of scapula subscapularis teres major serratus anterior teres minor supraspinatus spine of scapula latissimus dorsi triceps brachii as well. In human anatomy the shoulder joint comprises the part of the body where the humerus attaches to the scapula and the head. An MRI of the shoulder of a healthy subject was performed in the 3 planes of space coronal axial sagittal commonly used in osteoarticular imaging with two weightings to explore the musculoskeletal pathology of the shoulder.

Diagrams of the bones of the left arm and hand showing the position of the radius and ulna when the thumb is turned inwards. It stabilizes the shoulder and holds the head of the humerus in the glenoid a shallow cavity in the scapula. The shoulder is not a single joint but a complex arrangement of bones ligaments muscles and tendons that is better called the shoulder girdle.

This full color medical exhibit illustrates the normal anatomy of the left shoulder as seen from an anterior front and a lateral side view. Normal radiographic anatomy of the shoulder. Located superior to the shoulder joint the deltoid muscle works with the supraspinatus to abduct the arm at the shoulder.

Scroll or drag your finger down to reveal the radiographic anatomy for each shoulder view. In this image you will find supraspinatus deep muscles of the left shoulder anatomy pectoralis major deltoid in it. The collection of muscles and tendons in the shoulder is known as the rotator cuff.

If the labrum is torn as well as pain there is often instability. The clavicle the scapula and the humerus as well as associated muscles ligaments and tendons. Spin-echo T1 and proton-density with fat saturation sequences.

The shoulder joint also known as the glenohumeral joint is the major joint of the shoulder but can more broadly include the acromioclavicular joint. Anatomy of left shoulder coronal view. 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.

While the acromioclavicular joint is formed by the acromion and clavicle.

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