What consists of the shoulder girdle?
The shoulder girdle consists of three bones (clavicle, scapula, and humerus) and three joints (sternoclavicular, acromioclavicular, and glenohumeral) as shown in Fig.
What is shoulder girdle and pelvic girdle?
The pectoral girdles are to the upper limbs as the pelvic girdle is to the lower limbs; the girdles are the parts of the appendicular skeleton that anchor the appendages to the axial skeleton.
What is the difference between shoulder and shoulder girdle?
The shoulder is not a single joint, but a complex arrangement of bones, ligaments, muscles, and tendons that is better called 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.
What is the function of the shoulder girdle quizlet?
the activities of the scapula and clavicle and the sternum and ribs. the sternoclavicular and acromioclavicular joints allow shoulder girdle motions, including elevating and depressing, protraction and retraction and upward and downward rotation.
What is the function of the shoulder girdle?
It supports your shoulder, encourages a full range of motion, and protects your nerves and blood vessels that pass between the trunk of your body and your upper limbs. Your clavicle provides the only direct connection between your pectoral girdle and axial skeleton.
How many different movements can the shoulder girdle perform?
The scapula is an important bone in the function of the shoulder joint. It engages in 6 types of motion, which allow for full-functional upper extremity movement including protraction, retraction, elevation, depression, upward rotation, and downward rotation.
What is the purpose of the shoulder girdle?
What are the main ligaments of the shoulder girdle?
In the shoulder, the joint capsule is formed by a group of ligaments that connect the humerus to the glenoid. These ligaments are the main source of stability for the shoulder. They are the superior, middle and inferior glenohumeral ligaments. They help hold the shoulder in place and keep it from dislocating .
What is the main function of the shoulder?
The shoulder joint is the most mobile joint in the body. It moves the shoulder forward and backward. It also allows the arm to move in a circular motion and to move up and away from the body. Shoulders get their range of motion from the rotator cuff.
What is the name of the joint between the two bones of the shoulder girdle quizlet?
What two bones are primarily involved in movements of the shoulder girdle? It is the junction between the acromion (part of the scapula that forms the highest point of the shoulder) and the clavicle. It is a plane synovial joint.
What muscles stabilize the shoulder girdle?
Three main groups of muscles in the shoulder participate in the control of arm movement: (a) trapezius, levator scapula, rhomboid, serratus anterior, which arise from the main skeleton and insert on the scapula, moving and stabilizing this structure; (b) the rotator cuff muscles: teres minor, infraspinatus.
How do I strengthen my shoulder girdle?
Bilateral External Rotation: Stand tall with shoulders down and back drawing the belly in towards the spine. With elbows at 90-degrees and resistance band in hands, gently open arms out to sides against resistance. Don’t let shoulders tilt forward — keep them down and back. This strengthens the rotator cuff muscles.
The shoulder is not a single joint, but a complex arrangement of bones, ligaments, muscles, and tendons that is better called 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.
What are the bones are called in the shoulder girdle?
The clavicle is the bone in the shoulder girdle that is often referred to as the collarbone. It is a curved bone that connects the upper extremity (arm) to the body (the trunk), and provides several attachment sites for muscles and ligaments. The clavicle is unique in that a portion of this bone is not covered by muscle, but only covered by skin.
What bones make up the shoulder girdle?
The pectoral girdle consists of the two bones that make up your shoulder: clavicle, or collarbone. scapula, or shoulder blade.
What are actions of the shoulder girdle?
The muscles of the shoulder girdle are serratus anterior, pectoralis minor, levator scapulae, rhomboids, and trapezius. The movements (actions) of the shoulder girdle consist of: Elevation – moving upwards or shrugging your shoulders. Depression – moving shoulders downwards. Protraction – pushing shoulders forwards, rounding or ‘hunched’ shoulders.