Anatomy of the shoulder joint quiz by aviadsommelier. However the socket of the glenoid cavity of the scapula is itself quite shallow and is made deeper by the addition of the glenoid labrum. The glenoid labrum is a ring of cartilaginous fibre attached to the circumference of the cavity. 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. Nov 30, 2017 the human shoulder is the most mobile joint in the body. The shoulder comprises bones, ligaments, tendons, and muscles that connect the arm to the torso. Pdf the shoulder joint glenohumeral joint is a ball and socket. This mobility allows you to move through a tremendous range of motion in a variety of planes. See more ideas about shoulder anatomy, anatomy and shoulder. There is a 4 to 1 disproportion between the large round head of the humerus and the small shallow glenoid cavity. Pdf anatomy, shoulder and upper limb, shoulder muscles. The shoulder is one of the most sophisticated and complicated joints of the body.
It is made up of four joints and five groups of bones. General considerations of bones, axial skeleton, appendicular skeleton, joints, types of movement, description of selected joints, effects of aging on the joints. However, the elbow joint is also a rotary joint that allows the lower arm to turn outward. Anatomy, shoulder and upper limb, glenohumeral joint ncbi. Shoulder anatomy jacksonville orthopaedic institute. Dec 17, 2018 the humerus is the largest bone of the upper extremity and defines the human brachium arm. The shoulder complex has the greatest mo bility of all joints.
See more ideas about shoulder joint, shoulder anatomy and shoulder. Read more harshmohan pathology ebook download free in pdf format. The joint capsule contains the ligaments that attach the. This joint allows the arm to move in a circular rotation as well as towards and away from the body. The shoulder joint is a synovial joint of the ball and socket variety. Responsible for the movement of our everimportant hands, the shoulder is an extremely important part of the body when it comes to getting done what it is we want to get done. The shoulder is located where the arm meets the torso and is comprised of and functions with the following basic components. In anatomy, the scapula or shoulder blade is the bone that connects the humerus upper arm bone with the clavicle collar bone. The human shoulder is a ballinsocket joint and in turn is the most mobile joint in the body. The bones must maintain their strength and smooth surface in order to move easily against each other. An ebook reader can be a software application for use on a computer such as microsofts free reader application, or a booksized computer the is used solely as a reading device such as nuvomedias rocket ebook. This ring is continuous with the tendon of the biceps brachii above. The glenohumeral joint is the ballandsocket junction of the top of the arm bone, and the socket of the shoulder blade. Anatomy anatomy of the shoulder see online here the shoulder is the region of the body that connects the upper limb with the trunk.
Anterior view of the bones and joints of the shoul. Shoulder and hip joints ball and socket ball and socket joint. Articular capsule the joint cavity is enclosed by a double layered articuller capsule. Held together by ligaments and tendons two main ball and socket joints.
Since this movement takes place between the upper arm humerus and the cubitus ulna, we speak of the socalled humeralulnar joint. Chapter 4 skin, superficial fascia, and deep fascia of the neck. 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 joint is one of the most movable joints in the human body. The shoulder has two joints that work together to allow arm movement. The shoulder joint is formed where the humerus upper arm bone fits into the scapula shoulder blade, like a ball and socket. To allow such a wide range of movement, shoulder joints need to be able to move freely. Shoulder joint with texture 3d model, available formats obj, 3ds, mtl, pdf, ready for 3d animation and other 3d projects. Shoulder fractures in older patients are often the result of a fall from standing height. Pdf the shoulder joint glenohumeral joint is a ball and socket joint with the most extensive range of motion in the human body. If a virtual private party is more your thing, go here for details. Shoulder pain and common shoulder problems orthoinfo aaos.
Join a live hosted trivia game for your favorite pub trivia experience done virtually. Anatomy of the shoulder joint this movie is an educational resource only and should not be used to make a decision on shoulder arthroscopy. C ontrary to the anterior joint capsule, the posterior is quite thin. How skeletal structure lends to shoulder instability. The co ordinated activity of numerous muscles working together in patterns is necessary to achieve this. The three bones that make up the shoulder joint include the clavicle collarbone, scapula shoulder blade, and humerus long bone of the arm. Apr 14, 2020 the shoulder joint is the junction between the chest and the upper extremity. The shoulder joint is the junction between the chest and the upper extremity. As with all joints, there is cartilage on both ends of the connection to allow for smooth movement. To access free multiple choice questions on this topic, click here. All decisions about arthroscopy must be made in conjunction with your surgeon or a licensed healthcare provider. Injury to the shoulder joint is followed by pain, limitation of movement, and. Take the following quiz to find out how well you know the joints.
The shoulder joint is a ball and socket joint between the scapula and the humerus. A thickening of m iddle layer reinforces the axillary pouch. Glenohumeral joint an overview sciencedirect topics. Like their connected bones the scapulae are paired, with the scapula on the left side of the body being roughly a mirror image of the right scapula. Anatomy of the human shoulder joint verywell health. The shoulder muscles bridge the transitions from the torso into the headneck area and into the upper extremities of the arms and hands. Written and edited by expert surgeons in collaboration with a worldrenowned anatomist, this exquisitely illustrated reference consolidates surgical, anatomical and technical knowledge for the entire human body in a single volume. Instead, joint security is provided entirely by the soft tissue structures. Test your knowledge on this science quiz to see how you do and compare your score to others. Vishram singh anatomy free pdf download medicforyou. The glenoid labrum, a ring of fibrocartilage attached to the margins of the glenoid cavity, deepens slightly but effectively the depression of the glenoid. Joint allows the greatest range of movement in this type of joint, one end of the bone is shaped like a ball, and it fits into a hollow socket at the end of another joint. The modern era of total shoulder replacement began in the early 1950s with the introduction of a humeral.
The acromioclavicular joint is where the acromion, part of the shoulder blade scapula and the collar bone clavicle meet. 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. Anatomy and physiology the elbow joint is a hinge joint in other words, it can be bent and stretched. It is a ballandsocket joint, formed between the glenoid fossa of scapula gleno and the head of humerus humeral acting in conjunction with the pectoral girdle, the shoulder joint allows for a wide range of motion at the upper limb. Scapula and clavicle shoulder girdle musculoskeletal, shoulder, tutorials, upper limb by admin december 12, 2011 6 comments. Frozen shoulder, also called adhesive capsulitis, is a painful condition in which the movement of the shoulder becomes limited. Play sporcle s virtual live trivia to have fun, connect with people, and get your trivia on. 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. Thousands of new, highquality pictures added every day. In younger patients, shoulder fractures are often caused by a high energy injury, such as a motor vehicle accident or contact sports injury. Synovial fluid a slippery fluid that occupies all free spaces within the joint. The glenohumeral joint is where the ball humeral head and the socket the glenoid meet. While the joint capsule itself is a contiguous supportive structure surrounding.
It articulates proximally with the glenoid via the glenohumeral gh joint, and distally with the. Shoulder joint anatomy medvizz anatomy medical animations. A second joint in the shoulder is the junction of the collar bone with the shoulder blade, called the. Look from the front, side and above asymmetry, scars, deltoid wasting, scj or acj deformity, swelling of the joint from behind. Apr 01, 2014 the shoulder joint is one of the most movable joints in the human body. Shoulder area include gleno humeral acromio clavicular scapulo thoracic sterno clavicular 3.
Shoulder joint is formed by articulation of the scapula glenoid cavity and head of the humerus glenohumeral joint 4 dr. Jul 16, 2019 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 humerus is the largest bone of the upper extremity and defines the human brachium arm. The scapulothoracic joint is the physiological, or func tional, joint between the underside of the scapula and the dorsal thoracic wall. Weissman md, in imaging of arthritis and metabolic bone disease, 2009. Products under royalty free license can be used without liability to pay any license. The neck naturally there are combinations of the above, but it is worth keeping the above system in mind when examining a shoulder disorder. The glenohumeral joint is structurally a ballandsocket joint and functionally. Commonly thought of as a single joint, the shoulder is actually made up of two separate joints the glenohumeral and acromioclavicular joints.
Shoulder muscles and chest human anatomy diagram free pdf. May 12, 2020 this incongruent bony anatomy allows for the wide range of movement available at the shoulder joint but is also the reason for the lack of joint stability. Joint cavity space that is filled with synovial fluid. Bhanu prakash usmle, fmge and neet pg 88,982 views. The glenohumeral, or shoulder, joint is a synovial joint that attaches the upper limb to the axial skeleton. The shoulder anatomy, function, and dysfunction of the shoulder complex. The human shoulder is the most mobile joint in the body. The central bony structure of the shoulder is the scapula. Find shoulder anatomy stock images in hd and millions of other royalty free stock photos, illustrations and vectors in the shutterstock collection. 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. It allows the upper limb to have a wide array of movements. Shoulder fractures commonly involve the clavicle collarbone, humerus upper arm bone, and scapula shoulder blade. Chapter 5 the shoulder joint manual of structural kinesiology r. Synovial membrane covers all the surface within the joint capsule and secretes synovial fluid.
Anatomy and physiology, ed 7, new york, 2006, mcgraw. The shoulder is made up of two joints, the acromioclavicular joint and the glenohumeral joint. At the anterior portion of the capsule three local reinforcements are present. The glenohumeral joint is the most frequently symptomatic of the shoulder joints and the one usually addressed in shoulder replacement tsr surgery. Hart, mpa, ptt the shoulder complex consists of several ana tomical joints and one physiological joint. The joint is sensitive to pain, pressure, excessive traction, and distension. 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 glenohumeral gh joint makes up the ball and socket of the shoulder. The subacromial bursa reduces friction beneath the deltoid, promoting free motion of the rotator cuff tendons. The shoulder joint structure movement teachmeanatomy. Lets 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. Anatomy of bones and joints pdf 48p anatomy of bones and joints pdf 48p this note covers the following topics.
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