Week 7 - The Shoulder Flashcards
What are the gliding joints in the shoulder girdle?
Acromioclavicular
Sternoclavicular
Where is the acromium?
Distal end of spine of scapula
Trapezius origin
Base of scull
C7-T12
Trapezius insertion
Upper= lateral third of clavicle Middle= acromium process and spine of scapula Lower= base of spine of scapula
Lavatory scapulae insertion and origin?
Origin - C1 to C4
Insertion - superior angle of scapula
Rhomboids origin and insertion
Origin- C7 to T5
Insertion- medial border of scapula
Pectoralis minor origin and insertion
Origin- anterior ribs 3-5
Insertion- coracoid process
Serratus anterior origin and insertion
Origin- lateral aspect of ribs 1-8
Insertion- medial anterior border of scapula
Three ways to stabilise shoulder joint
Glenoid labrum
Ligaments
Rotator cuff muscles
Pectoralis major origin insertion and actions
Origin- medial half clavicle and sternum
Insertion - lat lip of intertubucular groove
Actions:
Adduction
Horizontal adduction
Internal rotation
Latissimus dorsi origin insertion and actions
Origin - T6 to sacrum
Insertion - medial lip of intertubucular groove
Actions: Adduction Horizontal abduction Extension Internal rotation
Teres major origin insertion and actions
Origin - inferior angle of scapula
Insertion- medial lip of intertubucular groove
Actions: Adduction Extension Internal rotation Horizontal abduction
Deltoid origin insertion and actions
Origin- A=lat third of clavicle M=acromium process P=spine of scapula
Insertion- deltoid tuberosity
Actions:
A- flexion, abduction, horizontal adduction
M- Abduction
P- extension, abduction, horizontal abduction
RC subscapularis origin insertion actions
Origin- anterior face of scapula
Insertion- lesser tubucle of humerus
Actions:
Internal rotation
RC supraspinatus origin insertion actions
Origin- posterior surface of scapula
Insertion- greater tubucle of humerus
Actions:
External rotation
