This section is a review of basic shoulder anatomy. Any time you shrug your shoulders, raise your hands, or reach for anything, you’re taking advantage of the fact that your shoulder joints allow for a lot of movement. 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). In anatomy, the scapula (plural scapulae or scapulas), also known as the shoulder bone, shoulder blade, wing bone or blade bone, is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone). Like most synovial joints, the articulating surfaces are covered with hyaline cartilage. The shoulder bones include the scapula (shoulder blade), humerus (upper arm bone), and clavicle (collarbone). Check out the Premium Anatomy Course to see the full version of this video and all other Anatomy videos. It covers the bones, ligaments, muscles and other structures that make up the shoulder. Next. This gives rise to the alternate name for the shoulder joint – the glenohumeral joint. The shoulder is the region where the upper limb is attached to the trunk. Then, draw the shoulder girdle on top of the ribcage. The shoulder is one of the largest and most complex joints in the body. Labral tear: An accident or overuse can cause a tear in the labrum, the cuff of cartilage that overlies the head of the humerus. Numerous muscles help stabilize the three joints of the shoulder while giving it motion. cartilage, to pad the meetings of the bones; tendons, to attach the muscles to the bones. The head of the humerus is much larger than the glenoid fossa, giving the joint a wide range of movement at the cost of inherent instability. The way the scapula connects these two structures is through a … of 321. The humerus is the bone of the arm that articulates with the scapula proximally and with the radius and the ulna distally. The shoulder joint is one of the most movable joints in the Human body. Numerous muscles help stabilize the … The shoulder is made up of two joints, the acromioclavicular joint and the glenohumeral joint. Shoulder anatomy. The human hand and wrist are comprised of three different bone groups. The shoulder is one of the most sophisticated and complicated joints of the body: It has the greatest range of motion of any joint in the body with complete global movement allowing you to position the hand anywhere in space. In this video we cover the bones of the Shoulder Girdle. Arthroscopic surgery requires less recovery time than open surgery. Shoulder Anatomy part 1 - Joints And Bones - YouTube So this is the first video on Shoulder Anatomy and I will make three more. Shoulder anatomy bones. The glenohumeral joint is where the ball (humeral head) and the socket (the glenoid) meet. Canale S, Campbell’s Operative Orthopaedics, Mosby Elsevier, 2007. Stan Prokopenko • June 7, 2015 • 6 Comments. Like their connected bones, the scapulae are paired, with each scapula on either side of the body being roughly a mirror image of the other. The large bone in the upper arm is called the humerus. © 2005 - 2019 WebMD LLC. The shoulder complex is made up of three bones, which are connected by muscles, ligaments, and tendons. The deepest layer of the shoulder includes the bones and the joints. This gives the shoulder a wide range of motion, but also makes it vulnerable to injury. The bones of the shoulder are: the clavicle; the scapula; the humerus; Test your knowledge of the clavicle, scapula and humerus with our labeled diagram exercises and quizzes! How it helps arthritis, migraines, and dental pain. Our website services, content, and products are for informational purposes only. Anatomy of the Shoulder Bones. Shoulder Bone Structures Your shoulders are made up of 3 main bones: the scapula, clavicle, and the humerus. Nerves and blood vessels supply the muscles and bones of the shoulder. The human shoulder is made up of three bones: the clavicle (collarbone), the scapula (shoulder blade), and the humerus (upper arm bone) as well as associated muscles, ligaments and tendons. It, essentially, floats off of the back of the chest, as it is connected to the body primarily by muscle. The shoulder complex is made up of three bones, which are connected by muscles, ligaments, and tendons. SHOULDER ANATOMY. The scapula, or “shoulder blade,” is an approximately triangular shaped bone. The shoulder blade is called the scapula and the collarbone is called the clavicle. To learn more about the structures that make up your shoulders, let's take a quick anatomy lesson and learn about the basics of the most mobile joint in your body. The next layer is made up of the ligaments of the joint capsule. The primary function of the shoulder girdle is to give strength and range of motion to the arm. The humerus and scapula are two main bones forming the shoulder joint anatomy. Your shoulder is the most moveable joint in the body. Labrum a fibrous ring of cartilage that surrounds the glenoid or shoulder socket. These illustrations allow to review the basis of the anatomy of the shoulder and to locate them more easily on an MRI by using cross-references. Glenohumeral ligaments (superior, middle and inferior) – the joint capsule is formed by this group of ligaments connecting the humerus to the glenoid fossa.They are the main source of stability for the shoulder, holding it in place and preventing it from dislocating anteriorly. Shoulder dislocation: The humerus or one of the other bones in the shoulder slips out of position. The top of the humerus is shaped like a ball. Search for "shoulder anatomy" in these categories. Learn more about other bones of the upper extremity, including shoulder bones and hand bones in the anatomy section at www.HandCare.org. It stabilizes the shoulder and holds the head of the humerus in the glenoid, a shallow cavity in the scapula. The shoulder joint is vulnerable to dislocations from sudden jerks of the arm, especially in children before strong muscles have developed. There are 17 muscles that attach to the scapula! Shoulder Anatomy. The articulations between the bones of the shoulder make up the shoulder joints. 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. what parts make up the shoulder First, draw the ribcage. 32,042 shoulder anatomy stock photos, vectors, and illustrations are available royalty-free. The tendons and the muscles come next. In addition to reading this article, be sure to watch our Shoulder Anatomy Animated Tutorial Video. Smart Grocery Shopping When You Have Diabetes, Surprising Things You Didn't Know About Dogs and Cats, Coronavirus in Context: Interviews With Experts, Sign Up to Receive Our Free Coroanvirus Newsletter, Care for Bumps, Bruises, Sprains, and Strains, Robert Smith, Running Back for the Minnesota Vikings. The shoulder joint is formed by the articulation of the head of the humerus with theglenoid cavity(or fossa) of the scapula. Assignment. Shoulder bones. They serve as the basic structure and support for the joints and ligaments that make up your shoulders as a whole. Shoulder Anatomy and Function. The bones of the shoulder consist of the humerus (the upper arm bone), the scapula (the shoulder blade), and the clavicle (the collar bone). The acromioclavicular ac joint where the clavicle meets the acromion of the scapula. Nerves and blood vessels supply the muscles and bones of the shoulder. The clavicle is … To keep things simple, we can divide the shoulder into layers. Bones of the shoulder The Scapula The scapula is a large, flat, triangular plate of bone on the posterior lateral aspect of the thorax, overlying the second to the seventh ribs. Toggle Anatomy System. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The main movement around the shoulder joint is to rotate the arm in a circular motion or to abduct out and away from the body, which is mainly assisted by the glenohumeral joint—also known as shoulder joint. A numeric illustration was then added to show bone anatomy, muscles attachments, ligaments and muscle layers of the rotator cuff. Other important bones in the shoulder include: The shoulder has several other important structures: The humerus fits relatively loosely into the shoulder joint. 1. Shoulder Joint Anatomy. The acromion is a bony projection off the scapula. The three bones of the shoulder are the: Arm bone (humerus) Shoulder blade (scapula) Here you can also learn about broken bones (i.e. The scapula is part of the “shoulder girdle” which also includes muscle and ligament that allow your shoulder to move. The shoulder allows for a wide range of movement. Shoulder Bones Scapula. 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. This guide will help you understand. The shoulder consists of three bonesyour upper arm (humerus), shoulder blade (scapula), and collarbone (clavicle). This finger has…, The pointer finger is the second digit and first finger of the human hand. Try these curated collections . The humerus is the single bone of the upper arm region ((Figure)). There are many nerves and blood vessels that supply the muscles and bones of the shoulder. This finger often…, The wrist connects the hand to the forearm. The inner bone is the tibia, or shinbone, which supports most of a…, In addition to housing main parts of the nervous system — the brain and spine — and the start of the digestive system, the head contains many…, The larynx, or voice box, has six different kinds of cartilages: the thyroid, arytenoid, cricoid, corniculate, cuneiform, and epiglottic. Anatomy. Shoulder Bones Scapula. Bones. Issues with any part of this architecture can cause you to experience pain in the shoulder. Starting with what is deepest, it goes: bone, then ligaments of the joint capsule, with tendons and muscles on top. Commonly thought of as a single joint, the shoulder is actually made up of two separate joints - the glenohumeral and acromioclavicular joints. Bones. The arm bone (humerus), the shoulder blade (scapular), the collar bone (clavicle), and the rib cage (bony thorax) make up the relevant bones. 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