Week 7 - The Shoulder Flashcards
(18 cards)
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
RC infraspinatus origin insertion actions
Origin- posterior face of scapula
Insertion- greater tubucle of humerus
Action:
External rotation
RC teres minor origin insertion actions
Origin- lateral aspect of scapula
Insertion- greater tubucle of humerus
Action:
External rotation
What causes RC impingement
Compression of supraspinatus into subacromial space
