W7 - Shoulder Girdle: Bones, Ligaments & Muscles Flashcards
What bones make up the shoulder girdle
Clavicle
Scapula
Sternum
What is the shoulder joint called
Gleno-humeral joint
What joint joins the sternum and the clavicle
Sternoclavicular joint
What is the function of the shoulder girdle
Increases ROM in the upper limb by changing the position of the glenoid fossa
Clavicle absorbs tension & compresses stress allowing forces to be transmitted from upper limb to the trunk
What shape is the clavicle
“S” shape
Describe the medial end of the clavicle
Convex anteriorly
Rounded triangular shape
Joins with the sternum = sternoclavicular joint
Describe the lateral end of the clavicle
Concave anteriorly
Broad and flatter
Articulates with the acromion process of scapula = acromioclavicular joint
What attaches to the deltoid tubercle of the clavicle
Anterior fibres of deltoid
What attaches to the trapezoid line and conoid tubercle of the clavicle
Coro clavicular ligament
What attaches in the subclavian groove of the clavicle
Subclavian vessels
What attaches to the costal tuberosity of the clavicle
Costoclavicular ligament joints
What 5 muscles attach to the clavicle
Sternocleidomastoid
Pectoralis Major
Trapezius
Deltoid
Subclavius
Describe the location and shape of the scapular
Sits posteriorly
Flat bone
Forms glenohumeral joint & acromiclavicular joint
Name the 3 borders of the scapular
Medial, lateral and superior
Name the 2 angles of the scapula
Superior and inferior