shoulder joint anatomy pdf

Next: Gross Anatomy. Basic Shoulder Anatomy The shoulder complex is made up of three bones, which are connected by muscles, ... shoulder complex joints, the sternoclavicular, the acromioclavicular and the scapulothoracic joints. They are shaped to move against each other with minimum friction. Multimedia Health Education Summary This movie is an educational resource only and should not be used to make a decision on shoulder conditions. The humerus is a long bone that forms the articulations of the glenohumeral joint proximally (with the scapula), and the humeral ulnar joint and humeral radial joint distally (with the ulna and radius respectively). Many people with shoulder pain, weakness, and instability often need to focus on improvements in their scapular function to help improve their shoulder mechanics. This flexibility is also what makes the shoulder prone to instability and injury. Abduction : The straight arm is raised at the side, with the palm down, as high as possible. These are dis-cussed below. The acromioclavicular joint is where the acromion, part of the shoulder blade (scapula) and the collar bone (clavicle) meet. Fibers that connect bone to muscle are called tendons. 28 Muscle Anatomy Structure of skeletal muscle . It is attached above to the circumference of the glenoid cavity beyond the glenoidal labrum, and below to the anatomical neck of the humerus, approaching nearer to the articular cartilage above than in the rest of its extent. Static stabilizers include the bony anatomy, negative intra-articular pressure, the glenoid labrum, and the glenohumeral ligaments along with the joint capsule. Prev Next The shoulder is one of the largest and most complex joints in the body. Functional Anatomy of the Shoulder Acomprehensive knowledge of the functional anatomy of the shoulder girdle and all of its component parts is mandatory in understanding arm-shoulder function.The basic function of the shoulder is to place the arm and especially the hand into a functional position that permits manipu-lative activities (Figure 4.1). All rights reserved. To review the anatomy of the shoulder joint and of the physiology of glenohumeral stability is essential to manage correctly shoulder instability. O n the other hand, the shoulder com plex is com posed of the scapulothoracic articulation and the glenohum eral joint to share the overallm otion and increase its range. Several structures hold the bones together. humeral (shoulder joint), sternoclavicular, acromio-clavicular, and scapulothoracic joints. All decisions about Arthroscopy must be made in conjunction with your surgeon or a licensed healthcare provider. Pelvic Girdle The pelvic girdle contains the hip bone and the sacrum. Under normal circumstances, we rarely stop to think about our shoulders. The shoulder is made up of two joints, the acromioclavicular joint and the glenohumeral joint. The lever is one of the sim-plest of all mechanical devices that can be called a ma-chine.The relationship of fulcrum to force to resistance distinguishes the different classes of levers. outlined in Table 1 and Figure 6. When we talk about the human shoulder joint, it refers to the area of the body where the humerus (the long bone in the arm of humans extending from shoulder to the elbow) is attached to scapula. Applied anatomy of the thorax and abdomen. Anterior aspect of the shoulder girdle. Anatomy of The Shoulder Joint. 27 The Lymphatic System . Two bones comprise the shoulder girdle. Then, keeping the elbows in contact with the body, the hands are spread outward as far as possible. The scapulothoracic joint is not a true joint but it describes movement of the scapula against the thoracic wall during arm movement. respectively. T he joints of the shoulder com plex have to rely on adjacent ligam ents and m uscles to provide stability. Shoulder Anatomy. 33 Gas … The shoulder joint is formed by the articulation of the head of the humerus with the glenoid cavity (or fossa) of the scapula. The shoulder muscles are responsible for maintaining the widest range of motion of any joint in your body. Your shoulder is a ball-and-socket joint made up of three bones: the clavicle (collarbone), scapula (shoulder blade) and humerus (upper arm bone). Anatomy of the Shoulder See online here The shoulder is the region of the body that connects the upper limb with the trunk. Shoulder Anatomy : Anatomy of The Shoulder Joint Multimedia Health Education Disclaimer This movie is an educational resource only and should not be used to make a decision on Shoulder Arthroscopy. 5-1 Chapter 5 The Shoulder Joint Manual of Structural Kinesiology R.T. Floyd, EdD, ATC, CSCS Scapula. reviews the anatomy and physiology of bone. Shoulder and hip joints Ball and socket Ball and Socket joint. Shoulder Anatomy Midwest Bone & Joint Institute 2350 Royal Boulevard Suite 200 Elgin, IL 60123 Phone: 847.931.5300 Fax: 847.931.9072 Midwest Bone & Joint Institute. Shoulder Joints. In this article, we shall look at the anatomy of the shoulder joint and its important clinical correlations. Shoulder joint, anterior view. Shoulder Joint • Ball and Socket joint • Ligaments: • a) Coracohumeral ligament –connects the coracoid process of scapula to the greater tubercle of the humerus. Osteology. The capsule of the glenohumeral (shoulder) joint is the articular capsule of the shoulder.It completely surrounds the joint. Sternocleidomastoid muscle Structures of the Shoulder Joint Articulating Surfaces. The Anatomy of the Shoulder. The shoulder allows overhead activities like screwing in a lightbulb and provides the strength to do a handstand or throw a 95-mile per hour fastball. BONES AND BONE MARKINGS OF THE REGION The bones of the lower limb include the pelvic girdle, femur, patella, tibia, fibula, and bones of the foot. Nursing Times [online]; 116: 2, 38-42. Glenohumeral joint (Articulatio glenohumeralis) The glenohumeral, or shoulder, joint is a synovial joint that attaches the upper limb to the axial skeleton. • b) Glenohumeral ligament –extend from the edge of glenoid cavity to lesser tubercle of humerus • c) Transverse humeral ligament –runs between the lesser and the greater tubercles. Anatomy. The shoulder or pectoral girdle is composed of the bones that connect the upper extremity to the axial skeleton. Layers of cartilage are located on bone-to-bone surfaces to allow for smooth motion. Commonly thought of as a single joint, the shoulder is actually made up of two separate joints - the glenohumeral and acromioclavicular joints. The shoulder is the most flexible joint in your body, and given the number of everyday activities it's involved in—from brushing your hair to reaching up into the cupboard—it's easy to see why shoulder pain is something you'd want to get to the bottom of right away. An image depicting shoulder anatomy can be seen below. Hinge Joints • HINGE JOINTS allow extensive flexion and extension (Bending and straightening) with only a small amount of rotation. It involves articulation between the glenoid cavity of the scapula (shoulder blade) and the head of the humerus (upper arm bone). This gives rise to the alternate name for the shoulder joint – the glenohumeral joint. 1 ©McGraw-Hill Higher Education. Joint Anatomy and Basic Biomechanics OUTLINE 3 From: Harmony Medical. 29 Anatomy of the Nose Etiology of Pressure Sores . The glenohumeral joint is where the ball (humeral head) and the socket (the glenoid) meet. Human Anatomy. 2 A Patient's Guide to Shoulder Anatomy Compliments of: DISCLAIMER: The information in this booklet is compiled from a variety of sources. The socket of the shoulder joint is part of the scapula, and if scapular movement is not normal, then shoulder function cannot be normal. 30 Pancreas Anatomy The Pelvic Girdle . Fibrous sheaths that connect bone to bone are called ligaments. • The joint is made by the joining of two bone ends which have smooth surfaces. It is not just a joint or muscle, but it is actually a group of various structures in joint region. 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 ().Both the glenoid and the humeral head are covered by a layer of hyaline articular cartilage. The dynamic-stabilizing structures include the rotator cuff muscles and the other muscular structures surrounding the shoulder joint. The glenohumeral (GH) joint makes up the ball and socket of the shoulder. Picture of the Shoulder. The muscles at the anterior aspect of the shoulder girdle are . Citation Walker J (2020) Skeletal system 1: the anatomy and physiology of bones. These are the clavicle and scapula. Understanding the structure and purpose of the bone allows nurses to understand common pathophysiology and consider the most-appropriate steps to improve musculoskeletal health. The unique anatomy of the shoulder enables the greatest range of motion of any joint in the body. composed of a complex structure of bones, joints, and mus-cles, the foot is also our steady connection to the ground. It may not be complete or timely. By Matthew Hoffman, MD. C onse- quently, they are susceptibleto injury and de- generation. There is a fift functional joint, the coracoacromial arch, which de- scribes the region where the head of the humerus is covered by the acromion and the coracoacromial lig-ament. KNOWLEDGE EVIDENCE: K9: Detailed joint anatomy for each major joint (shoulder, hip, sacroiliac, knee, ankle/foot, wrist, elbow, acromioclavicular, sternoclavicular, costal, spine, atlanto-occipital, temporomandibular) K9: Accessory/secondary coupled motions of joints K9: Capsular restrictions and patterns SHOULDER (GLENOHUMERAL) JOINT Shoulder Joint In the shoulder joint stability has … 26 Human Liver Anatomy Symptoms of Liver Damage . In this chapter only those muscles that are not discussed else-where are described. How skeletal structure lends to shoulder instability. The most flexible joint in the entire human body, our shoulder joint is formed by the union of the humerus, the scapula (or shoulder blade), and the clavicle (or collarbone). The scapula is a triangular-shaped bone that … •Clinical Anatomy of Upper Limb Joints •Clinical Anatomy of Upper Limb Muscles •Clinical Anatomy of Nerve affect Upper Limb Muscles •Special Diagnostic Tests. applied by muscles at some point along the lever to move the body part (resistance). 31 The Hip Joint The Lumbar Plexus . The information in this presentation has been developed to help consumers understand the structure and function of anatomical components and take charge of Orthopedic health. SHOULDER COMPLEX ANATOMY Osseous Elements The shoulder complex includes the articulations of the humerus, the clavicle, the scapula, and the posterior surface of the ribs. Applied anatomy of the shoulder, and . Knee Joint Anatomy Torn Anterior Cruciate Ligament . The shoulder girdle (composed of the scapula and clavicle) and pelvic girdle are the two points in the body where the axial and the appendicular skeletons meet. Shoulder Anatomy : Anatomy of The Shoulder Joint External Rotation : The elbows are held by the sides of the body, bent at 9 with palms facing each other. The shoulder joint (or glenohumeral joint from Greek glene, eyeball, + -oid, 'form of', + Latin humerus, shoulder) is structurally classified as a synovial ball and socket joint and functionally as a diarthrosis and multiaxial joint. 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. 32 Human Lungs Anatomy The movements of the chest during breathing . 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