The clavicle is the only bony attachment between the trunk and the upper limb. It forms the front portion of the shoulder girdle and is palpable along its entire length with a gentle S-shaped contour. The clavicle articulates at one end with the sternum (chest bone) and with the acromion of the scapula at the other.The clavicle is the only bony attachment between the trunk and the upper limb. It forms the front portion of the shoulder girdle and is palpable along its entire length with a gentle S-shaped contour. The clavicle articulates at one end with the sternum (chest bone) and with the acromion
At which joint does the shoulder girdle attach to the trunk?
Scapulothoracic joint. Also known as the scapulocostal joint, this is where the scapula bone meets the ribs in the back of your chest.
What are the joints of the shoulder girdle?
The shoulder girdle is composed of the clavicle and the scapula, which articulates with the proximal humerus of the upper limb. Four joints are present in the shoulder: the sternoclavicular (SC), acromioclavicular (AC), and scapulothoracic joints, and glenohumeral joint.
What attaches the scapula to the trunk of the body?
The trapezius, levator scapulae, and rhomboids originate from the base of the skull and/or spine and connect the scapula and clavicle to the trunk of the body.
How many joints are between the shoulder girdle and the trunk?
3.2. Shoulder. The shoulder girdle, consisting of the collar bone (clavicle) and the shoulder blade (scapula) provides the bony link between the arm and the trunk. The three joints of the shoulder girdle are constructed to allow a wide range of arm movement, at the expense of stability.
What are the 3 processes of the scapula?
The scapula has three angles (superior/medial, lateral, inferior), three borders (medial, lateral/axillary, and superior), and two surfaces (ventral and dorsal). The scapula has three processes: the acromion, the spine, and the coracoid process.
What is the most mobile of the primary joints forming the shoulder girdle?
 The latter also includes minor articulations of the sternoclavicular (SC), acromioclavicular (AC), and scapulothoracic joints.  The glenohumeral joint ranks as the most mobile joint of the human body.
What is the ball-and-socket joint in the shoulder called?
glenohumeral joint The glenohumeral joint, also known as the shoulder joint, is a ball-and-socket joint that connects the upper arm to the shoulder blade. This joint allows free movement of the arm so that it can rotate in a circular fashion.
What is back of shoulder called?
scapula The scapula is a large, flat triangular bone with three processes called the acromion, spine and coracoid process . It forms the back portion of the shoulder girdle.
What is the joint in the shoulder called?
glenohumeral joint The glenohumeral joint is the one most people think of as the shoulder joint. It is formed where a ball (head) at the top of the humerus fits into a shallow cuplike socket (glenoid) in the scapula, allowing a wide range of movement.
What factors allow the shoulder to have a wide range of motion?
What factors allow an especially wide range of motion in the shoulder? The looseness of the attachments and the large articular surface of the humerus in the shallow glenoid cavity allow for the especially wide range of motion in the shoulder.
Which is the most mobile of the primary joints forming the shoulder girdle?
Scapula Scapula[edit | edit source] The Scapula commonly referred to as the Shoulder Blade is a highly mobile, thin, flat triangular-shaped bone placed on the postero-lateral aspect of the thoracic cage. It has two surfaces, three borders, three angles and three processes.