What 3 bones make up the shoulder?

Asked By: Darrin Oltersdorf | Last Updated: 9th March, 2020
Category: medical health bone and joint conditions
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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.

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Keeping this in view, what 3 bones make up the shoulder girdle?

Shoulder girdle. The shoulder girdle or pectoral girdle is the set of bones in the appendicular skeleton which connects to the arm on each side. In humans it consists of the clavicle and scapula; in those species with three bones in the shoulder, it consists of the clavicle, scapula, and coracoid.

Beside above, how is the shoulder joint formed? The shoulder joint is formed by the articulation of the head of the humerus with the glenoid cavity (or fossa) of the scapula. This gives rise to the alternate name for the shoulder joint – the glenohumeral joint. Like most synovial joints, the articulating surfaces are covered with hyaline cartilage.

One may also ask, what are the 3 joints of the shoulder?

Shoulder Anatomy. The shoulder is made up of three bones: the scapula (shoulder blade), clavicle (collarbone) and humerus (upper arm bone). Two joints in the shoulder allow it to move: the acromioclavicular joint, where the highest point of the scapula (acromion) meets the clavicle, and the glenohumeral joint.

What are the three ligaments that support the shoulder joint?

There are three glenohumeral ligaments which provide some support to the front of the shoulder joint; the superior, middle and inferior glenohumeral ligaments. The superior glenohumeral ligament works in conjunction with the coracohumeral ligament to stabilise the humeral head.

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What is the other name of shoulder girdle?

The shoulder girdle is also called the pectoral girdle, and it is a bone ring, incomplete posteriorly. The shoulder girdle is formed by two sets of bones: the scapulae, posteriorly, the clavicles anteriorly and completed anteriorly by the manubrium of the sternum (part of the axial skeleton).

What two bones form the pelvic girdle?

Pelvic bone
The pelvic skeleton is formed posteriorly (in the area of the back), by the sacrum and the coccyx and laterally and anteriorly (forward and to the sides), by a pair of hip bones. Each hip bone consists of 3 sections, ilium, ischium, and pubis.

What is the pelvic girdle?


Pelvis, also called bony pelvis or pelvic girdle, in human anatomy, basin-shaped complex of bones that connects the trunk and the legs, supports and balances the trunk, and contains and supports the intestines, the urinary bladder, and the internal sex organs.

What is the function of the shoulder girdle?

The primary function of the shoulder girdle is to give strength and range of motion to the arm. The shoulder girdle includes three bones—the scapula, clavicle and humerus.

How do I stabilize my shoulder joint?

The end of the scapula, called the glenoid, meets the head of the humerus to form a glenohumeral cavity that acts as a flexible ball-and-socket joint. The joint is stabilized by a ring of fibrous cartilage surrounding the glenoid, called the labrum.

What is a synovial joint?

A synovial joint, also known as diarthrosis, joins bones with a fibrous joint capsule that is continuous with the periosteum of the joined bones, constitutes the outer boundary of a synovial cavity, and surrounds the bones' articulating surfaces. The synovial cavity/joint is filled with synovial fluid.

What is the shoulder made up of?


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.

What is the bone in your shoulder called?

Clavicle: Also known as the collarbone, the clavicle extends across the front of the shoulder from the sternum to the scapula. Scapula: More commonly known as the shoulder blade, the scapula is a flat triangular bone located in the upper back.

What is a pivot joint?

Pivot joint, also called rotary joint, or trochoid joint, in vertebrate anatomy, a freely moveable joint (diarthrosis) that allows only rotary movement around a single axis. The moving bone rotates within a ring that is formed from a second bone and adjoining ligament.

What is the classification of the shoulder joint?

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.

Where are shoulders located?

Your shoulder is made up of three bones: your upper arm bone (humerus), your shoulder blade (scapula), and your collarbone (clavicle). The head of your upper arm bone fits into a rounded socket in your shoulder blade. This socket is called the glenoid.

What are the main muscles in the shoulder?


The most important shoulder muscles are the four rotator cuff muscles - the subscapularis, supraspinatus, infraspinatus and teres minor muscles - which connect the scapula to the humerus and provide support for the glenohumeral joint.

What is shoulder abduction?

Shoulder abduction
Abduction occurs when you have arm movement away from the middle of your body. When you raise your arm out from the sides of your body, it's an abduction of your shoulder. This places your hands above your head with your arms straight.

What is the anatomy of the shoulder?

Shoulder Anatomy. The shoulder is made up of three bones: the scapula (shoulder blade), clavicle (collarbone) and humerus (upper arm bone). Two joints in the shoulder allow it to move: the acromioclavicular joint, where the highest point of the scapula (acromion) meets the clavicle, and the glenohumeral joint.