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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. The articulations between the bones of the shoulder make up the shoulder joints.
Feb 15, 2024 · The three bones of the shoulder are the: Humerus (arm bone) Scapula (shoulder blade) Clavicle (collarbone) The scapula has one part that forms a socket for the ball-and-socket shoulder joint; this is called the glenoid. The glenoid is covered with smooth cartilage. The rounded top of the arm bone (humerus) contacts the shoulder blade at the ...
Aug 31, 2023 · Shoulder pain causes include: Avascular necrosis (osteonecrosis) (The death of bone tissue due to limited blood flow.) Brachial plexus injury. Broken arm. Broken collarbone. Bursitis (A condition in which small sacs that cushion the bones, tendons and muscles near joints become inflamed.) Cervical radiculopathy.
Apr 17, 2020 · Range of motion. Muscle functions. Common injuries. Causes of injury. Treatments. When to see a doctor. Takeaway. The shoulder muscles are responsible for maintaining the widest range of motion...
Jan 18, 2022 · Anatomy. Function. Bones and joints. Muscles. Common conditions. Tips for shoulder health. Summary. The shoulder is a complex structure present on the upper body that connects the arms to the...
Nov 3, 2023 · Pectoralis major. Pectoralis minor. Subclavius. Serratus anterior. Posterior axio-appendicular shoulder muscles. Extrinsic muscles. Intrinsic muscles. Sources. + Show all. Anterior axio-appendicular shoulder muscles. Anterior shoulder muscles, also called the pectoral muscles, attach the upper extremity to the clavicle and the thoracic cage.
The shoulder allows for a large range of motion due to the spheroid shape of the glenohumeral joint but this (i.e. a large ball in a small socket) renders it prone to dislocation and other injuries. [1]
