Retraction

Question 1

What is retraction?

Answer 1

acromiom moves backwards onto the clavicle

at the sternoclavicular joint the clavicle will move forwards

Question 2

How much movement?

Answer 2

2cm from normal posture

Question 3

What is it limited by?

Answer 3

costoclavicular ligament

Question 4

Rhomboid major

Answer 4

o- spinous processes of T2-T5 vertebra and intervening supraspinous ligament
I- posterior surface of medial border of scapular from the root of the spine of the scapula to the inferior age
I- dorsal scapular nerve C4, C5
A- elevates and retracts and medially rotates the scapula

Question 5

Rhomboid minor

Answer 5

O- lower end of ligament nuchae and spinous processes of C7 and T1 vertebra
I- posterior surface of medial border of the scapula at the root of the spine of the scapula
I- dorsal scapular nerve C4, C6
a- medial rotation, elevates and retracts the scapula