(Adapted from Clement CD. Shoulder fractures in older patients are often the result of a fall from standing height. It is one of the most mobile joints in the human body, at the cost of joint stability. The Shoulder Joint The shoulder is the most flexible joint in the body making it the most susceptible to instability and injury. The glenohumearal joint has a greater range of motion than any other joint in the body. Diagnosis of glenohumeral joint pathology A Patient's Guide to Shoulder Anatomy Compliments of: The acromioclavicular (AC) joint is where the clavicle meets the acromion. St. Louis, MO 63110, One Children's Place SHOULDER Here is the very basic anatomy of the shoulder joint (aka glenohumeral joint) showing the ball and socket joint where the humerus bone of the arm meets the scapula. Philadelphia: Lea & Febiger; 1985. p. 366-367; with permission.) h�bbd``b`� $��C �,+��@��H�x��/ � �8 R���"�������b`$���x�@� u6 Shoulder injuries can occur to any part of the shoulder. The labrum is a rim of cartilage that surrounds the socket of the shoulder joint. A Patient's Guide to Shoulder Anatomy Bones and Joints Introduction The shoulder is an elegant piece of machinery. The GH joint is formed between the humeral head and the glenoid fossa. 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. Type of joint 3. 2.6). Shoulder Muscles Anatomy Review.pdf. Scapula - shoulder blade 5. %%EOF In fact five ‘joints’ of impor-tance to ‘shoulder’ function can be distinguished: 1 •glenohumeral joint (1)The •acromioclavicular joint (2)The •sternoclavicular joint (3)The • subacromial joint … The shoulder joint (glenohumeral joint) is a ball and socket joint between the scapulaand the humerus. respective joint. T he shoulder is a complex struc-ture consisting at its most basic level of two joints, one of which, the glenohumeral joint, is rein-forced by a fibrocartilaginous labrum and is supported by multiple ligaments, muscles, tendons, and articular surfaces. The shoulder joint 1. C ontrary to the anterior joint capsule, the posterior is quite thin.7O G len o h u m eral Jo in t C ap su le T he capsule of the glenohum eral joint has a large volum e of norm ally about 10 … Ligaments connect bone to bone, and acromio clavicular ligament connects the Acromion process to the clavicle. The small size of the glenoid fossa and the relative laxity of the joint capsule renders the joint relatively unstable and prone to subluxation and dislocation. The large bone in the upper arm is called the humerus. Your doctor may order specific tests to help identify the cause of your pain and any other problems. 30th edition. AHMAD YASIN AL-ZU‟BI. This requires fine-tuned muscle coordination. Clavicle - collar bone 4. Introduction [edit | edit source]. The wrist joint also referred to as the radiocarpal joint is a condyloid synovial joint of the distal upper limb that connects and serves as a transition point between the forearm and hand. Applied MRI Anatomy of the Shoulder Charles P. Ho, MD, PhD' t Charles P. Ho T he shoulder allows great niohility and complex niotion by virtue of the relatively large humeral head ar- ticulating with a small and shallow glenoid f'ossa, relying upon the la- \,rum, capsule, and surrounding soft tissues to deepen the fossa and pro- vide stability. In younger patients, shoulder fractures are often caused by a high energy injury, such as a motor vehicle accident or contact sports injury. Content • Introduction • Glenoid Cavity • Ligaments Surrounding the joint • Bursae in Relation to the Shoulder Joint • Muscles Acting on Shoulder Joint • Blood and Nerve Supply • Joint Movement • Close and Loose Pack Position • Applied Anatomy An overview of shoulder joint anatomy including the bones of the shoulder joint, the ligaments of the shoulder and the muscles of the shoulder girdle. The calcified subacromial-subdeltoid bursa has a characteristic appearance on plain radiographs. The function of the shoulder is influenced by man joints. In a visual study of human and simian function of the shoulder joint, manifest superiority of the latter was noted. Center for Advanced Medicine - South County, St. Louis Children's Specialty Care Center, Washington University Orthopedics – Chesterfield, Common conditions that require shoulder arthroscopy. The rotator cuff connects the humerus to the scapula and is made up of the tendons of four muscles, the supraspinatus, infraspinatus, teres minor and the subscapularis. ages, the anatomy of the AC joint is best displayed at the level of the supraspinatus tendon. St. Louis, MO 63110, 13001 N Outer Forty Road The glenohumeral joint is where the ball (humeral head) and the socket (the glenoid) meet. Anatomy. Its large mobility is based on the structure of the glenohumeral joint and simultaneous motion of all segments of the shoulder girdle. These pictures will show any injuries to the bones that make up your shoulder joint. • The muscles surrounding the joint undergo reflex spasm in response to pain originating in the joint, which in turn serves to immobilize the joint and thus reduce the pain. The glenohumearal joint has a greater range of motion than any other joint in the body. View Shoulder-Anatomy.pdf from AVID 105 at Freedom High School. The shoulder joint (glenohumeral joint) is a ball and socket joint between the scapula and the humerus.It is the major joint connecting the upper limb to the trunk. Town and Country, MO 63017, 14532 S. Outer Forty Drive An overview of shoulder joint anatomy including the bones of the shoulder joint, the ligaments of the shoulder and the muscles of the shoulder girdle. Shoulder Anatomy : Anatomy of The Shoulder Joint Ligaments connect bone to bone, and coraco clavicular ligament connects the corocoid process of the scapula to the clavicle. Share on Pinterest Four muscles make up the rotator cuff: the subscapularis, teres minor, supraspinatus, and infraspinatus. The human shoulder is the most mobile joint in the body. hޤT�N�0�?� glenohumeral joint also occurs at each of the other joints. Acromioclavicular Joint The acromioclavicular joint is formed by an articulation between the lateral end of the clavicle and the acromion of the scapula (Figures 1–3, additional material). The acromioclavicular joint is where the acromion, part of the shoulder blade (scapula) and the collar bone (clavicle) meet. A false joint is formed where the shoulder Humerus; greater tubercle 6. Comparative Anatomy of the Shoulder. The examinations covered for the upper extremity are the shoulder, elbow, hand and wrist. the frontal plane. A 'ball' at the top of the upper arm bone (the humerus) fits neatly into a 'socket', called the glenoid, which is part of the shoulder blade (scapula). This is a free printable worksheet in PDF format and holds a printable version of the quiz Shoulder Joint Anatomy .By printing out this quiz and taking it with pen and paper creates for a good variation to only playing it online. formed by the articulation of the head of the humerus with theglenoid cavity(or fossa) of the scapula. Introduction [edit | edit source]. U�νBj)�"тZ�5�ws)�a_���iA�be9��39'�vgg�c�`����s�E�3ZǼ|��0! This joint allows the 48 0 obj <>stream The muscles of the rotator cuff keep the humerus tightly in the socket. Together they assist in stabilizing the shoulder joint … The acromioclavicular joint is where the acromion, part of the shoulder blade (scapula) and the collar bone (clavicle) meet. The function and position of the cervical The shoulder complex comprises the glenohumeral joint, sternoclavicular joint, acromioclavicular joint, and the scapulothoracic articulation, and connects the upper limb to the trunk. 0 It is made up of ligaments. A Patient's Guide to Shoulder Anatomy Bones and Joints Introduction The shoulder is an elegant piece of machinery. Shoulder Girdle Clavicle Scapula Sternoclavicular Joint Acromioclavicular Joint Bones of Arm Humerus Upper End: Glenohumeral Joint Lower End: See below Bones of Forearm Radius Ulna Humeroradial Joint Humeroulnar Joint Proximal Radioulnar Joint Distal Radioulnar Joint Bones of Wrist and Hand 8 Carpal Bones 5 Metacarpal 14 Phalanges Intercarpal Joint MR is the best imaging modality to examen patients with shoulder pain and instability. The top of the humerus is shaped like a … Relations 7. The human shoulder is the most mobile joint in the body. The authors present a review of the anatomy of the major bursae around the shoulder joint and discuss the use of the different imaging modalities which demonstrate their radiologic features. PDF. The shoulder is made up of two joints, the acromioclavicular joint and the glenohumeral joint. The joint capsule surrounds the shoulder joint. h�b```f``Rb`a`��a�c@ >�r,`�p$��t����������DD�f� Ҽ@, y2K�@��J��l‘���5� G�e�98o=cT ��a`��H3�@� +�� Definition 2. A second joint in the shoulder is the junction of the collar bone with the shoulder blade, called the acromioclavicular joint. This hypothesis was … Shoulder joint Definition : Shoulder joint is formed by articulation of the scapula (glenoid cavity) and head of the humerus Glenohumeral joint 4© Dr.N.Mugunthan 5. Abstract. • Injury to the shoulder joint is … CHAPTER 4 Functional Anatomy of the Shoulder 117 FIGURE 4.5 Rotation of Clavicle on Arm Overhead Elevation A, Without clavicular rotation about sternoclavicular joint, arm can elevate only 30 degrees. Suite 200 Bones Shoulder is a 'ball-and-socket' joint. Gray's anatomy of the human body. 3. The shoulder is the most mobile joint in the body with the least stability; therefore, it is one of the most frequently injured joints in the body. Ligaments, Blood supply, Relations, Nerve supply, Movements, Muscles associated with movements and Clinical anatomy of the Shoulder joint. When inflamed it can be visualized by ultrasound and magnetic resonance imaging. Clinical Examination A comprehensive collection of clinical examination OSCE guides that include step-by-step images of key steps, video demonstrations and PDF mark schemes. endstream endobj startxref Classification of Joints • 1. document so that you can physically feel the movements of the shoulder. and innervate a portion of the anterior shoulder joint. Shoulder Labrum. The shoulder joint (glenohumeral joint) is a ball and socket joint with the most extensive range of motion in the human body. St. Louis, MO 63141, 5201 Midamerica Plaza Given the joint's mobility, stability is mainly based … Although each imaging modality used in the evalua-tion of the shoulder joint has strengths and Anatomy. The examinations covered for the lower extremity are the hip, knee, foot and ankle. Shoulder Anatomy. Humerus Scapula A thickening of m iddle layer reinforces the axillary pouch. The shoulder complex, composed of the clavicle, scapula, and humerus, is an intricately designed combination of four joints, the Glenohumeral (GH) Joint, the Acromioclavicular (AC) Joint and the Sternoclavicular (SC) Joint, and a "floating joint", known as the Scapulothoracic (ST) joint.. This mobility provides the upper extremity with tremendous range of motion such as adduction, abduction, flexion, extension, internal rotation, external rotation, and 360° circumduction in the sagittal plane. Magnetic resonance imaging (MRI) … Ligaments 6. (A) Anterior view of ligaments of the left shoulder. Glenohumeral joint - where the ball head of the humerus fits into glenoid socket on the end of the scapula. Fig. endstream endobj 24 0 obj <> endobj 25 0 obj <>/Rotate 0/Type/Page>> endobj 26 0 obj <>stream anatomy, pathology, diagnosis, and injection technique of common sites in which this skill is applicable. Suite 1B Joint … 38 0 obj <>/Filter/FlateDecode/ID[<1A9F60E0A7C0CA4CBCF43A7C24B939DC>]/Index[23 26]/Info 22 0 R/Length 81/Prev 40317/Root 24 0 R/Size 49/Type/XRef/W[1 2 1]>>stream Orthopedic Injury Clinic! How skeletal structure lends to shoulder instability. • The joint is sensitive to pain, pressure, excessive traction, and distension. (Reg Anesth Pain Med 2017;42: 564–570) Pain of the shoulder, including the glenohumeral joint (GHJ), acromioclavicular joint (ACJ), and rotator cuff, is prevalent and responsible for significant health burden.1–4 Innervation of the GHJ can be divided into anterior and posterior innerva- According to the type of tissue at the joint: • a) Fibrous joint -- uses fibrous connective tissue to articulate bones. The glenohumeral joint is where the ball (humeral head) and the socket (the glenoid) meet. Anatomy of the shoulder joint. Shoulder & Elbow⎪Glenohumeral Joint Anatomy, Stabilizer, and Biomechanics Orthobullets Team Shoulder & Elbow - Glenohumeral Joint Anatomy, Stabilizer, and Biomechanics; Listen Now 24:16 min. The scapulothoracic joint is the physiological, or func­ tional, jOint between the underside of the scapula and the dorsal thoracic wall. Glenohumeral Joint Is A Ball And Socket Joint Formed By Humerus and Glenoid Cavity. 228 plays. The AC joint should be evalu-ated for the shape of the acromion (Fig. The Shoulder Joint By : Gan Quan Fu, PT, MSc. joint. It has the greatest The glenohumeral joint is where the ball (humeral head) and the socket (the glenoid) meet. Share on Pinterest Four muscles make up the rotator cuff: the subscapularis, teres minor, supraspinatus, and infraspinatus. Applied anatomy 1. The shoulder is made up of two joints, the acromioclavicular joint and the glenohumeral joint. The Anatomy of the Shoulder The shoulder is made up of two joints, the acromioclavicular joint and the glenohumeral joint. 6th Floor, Suites A & B; 12th Floor, Suite A "c����!�!�q6=:��i�Ft)̊]��}�/�L��y-q��?f:��z�\f�q����j�W��9���H��ǫ��I� �:����:d��˒������ 7� Ϋǭ�U"MW���ĩ�l2��'�*�eg��q�S'j�˖�4���f[�X���Z�ʹL���퇒RM�Z뼰M��R���{N�y�0�p��^V��. Tendons attach muscle to bone. 1. Muscles in turn move bones by pulling on the tendons. Suites 110 & 210 It is the major joint connecting the upper limb to the trunk. 2.4) and the vari-ous ligaments around the shoulder (Fig. Tests. Variety of joint 4. Each chapter covers the examination of a joint. It is rimmed with soft tissue called the labrum that makes a deeper socket that molds to fit the humeral head. Acromioclavicular joint - where the acromion of the scapula (which comes over the top of the shoulder joint) joins with the clavicle 3. X-rays. Acromio-Clavicular Joint Is A Link Between Acromion And Clavicular Bone. • c) Synovial joint --uses auricular cartilage, synovial membrane, joint capsule, and ligaments to articulate bones. B, As there is rotation of clavicle, scapula elevates 60 degrees. Suite 1500 ... Sternoclavicular Joint Anatomy and Pathology. Anatomy. The shoulder blade is called the scapula and the collarbone is called the clavicle. NEXT TOPIC:  Common conditions that require shoulder arthroscopy, 4921 Parkview Place The function of the shoulder girdle requires an optimal and . The shoulder anatomy provides mobility but leads to a relatively unstable joint, prone to subluxation and dislocation . The superior and inferior portions of the glenoid labrum, as well as the (B) Coronal section through the head of the left humerus and shoulder joint, anterior half viewed from behind. About this Worksheet. Let’s talk about some of the things that make this joint different both in skeletal structure and musculature from other joints less likely to be injured. 2. Ligaments are soft tissue that holds bone to bone. The socket, or the glenoid, is shallow and flat. Sprain, strain or jam? Glenohumeral Joint ... shoulder joint. The acromioclavicular joint is where the acromion, part of the shoulder blade (scapula) and the collar bone (clavicle) meet. It is one of the most mobile joints in the human body, at the cost of joint stability. Comparative anatomical studies tend to confirm these observations and indicate that many common affections of the shoulder in humans may stem from incomplete evolutionary adaptation. Basic Shoulder Anatomy The shoulder complex is made up of three bones, which are connected by muscles, ligaments, and tendons. W. Jaap Willems. 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