What bones are in the shoulder girdle?

What bones are in 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 3 bones make up the shoulder girdle and how is it linked to the axial skeleton?

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.

Which bones form a connection between the scapula and the sternum to support the pectoral girdle?

The clavicle (collarbone) is an S-shaped bone located on the anterior side of the shoulder. It is attached on its medial end to the sternum of the thoracic cage, which is part of the axial skeleton. The lateral end of the clavicle articulates (joins) with the scapula just above the shoulder joint.

What type of bone is girdle?

The pelvic girdle is a ring of bones attached to the vertebral column that connects the bones of the lower limbs to the axial skeleton. The pelvic girdle consists of the right and left hip bones. Each hip bone is a large, flattened, and irregularly shaped fusion of three bones: the ilium, ischium, and pubis.

What bones make up the elbow joint?

The elbow is a complex joint formed by the articulation of three bones –the humerus, radius and ulna. The elbow joint helps in bending or straightening of the arm to 180 degrees and assists in lifting or moving objects. The bones of the elbow are supported by: Ligaments and tendons.

How many different movements can the shoulder girdle perform?

Contraction of the lower fibers of this muscle can therefore rotate the scapula, with the opposite rotation produced by the rhomboid major muscle. In all, 16 muscles affect movements of the shoulder. The scapula is a sort of mobile foundation for muscles that move the arm.

What forms pectoral girdle?

The shoulder, or pectoral, girdle is composed of the clavicles (collarbones) and the scapulae (shoulder blades). In humans the clavicles join the sternum (breastbone) medially and the scapulae laterally; the scapulae, however, are joined to the trunk only by muscles.

What is the bone from elbow to shoulder?

The humerus is the arm bone between your shoulder and your elbow. There are two types of humerus fractures based on the location of the break(s).

What bone articulates with the girdle bone?

Shoulder girdle bone that articulates with and transmits forces to the bony thorax Clavicle Depression in the scapula that articulates with the humerus Glenoid cavity Process above the glenoid cavity that permits muscle attachment Caracoid foxxa Collarbone

Is the shoulder girdle part of the appendicular skeleton?

Shoulder Girdle. Those bones are part of the appendicular skeleton – consisting bones of the limbs (upper and lower) and most of the bones forming the girdles (pectoral and pelvic). These bones connect the arms on each side, and the girdle actually functions as the anchor that attaches the appendages to the axial skeleton.

What does the pectoral girdle attach to?

Pectoral Girdle. The pectoral girdle consists of the clavicle and the scapula, which serve to attach the upper limb to the sternum of the axial skeleton. The scapula (shoulder blade) lies on the posterior aspect of the shoulder. It is supported by the clavicle, which also articulates with the humerus (arm bone) to form the shoulder joint.

What bone does not attach to the axial skeleton?

shoulder girdle bone that is unattached to the axial skeleton. Clavical. shoulder girdle bone that transmits forces from the upper limb to the bony thorax. Glenoid Cavity. depression in the scapula that articulates with the humerus. Coracoid process. process above the glenoid cavity that permits muscle attachment.