Abduction Flashcards
1
Q
Deltoid (middle fibres)
A
O- inferior edge of the crest of the spine of the scapula
lateral margin of the acromion
anterior border of lateral 1/3 of the clavicle
I- deltoid tuberosity of the humerus
I- axillary nerve C5,C6
2
Q
Range
A
100-120 degrees
beyond 120 becomes elevation to 180
3
Q
Supraspinatus
A
O- medial 2/3 of the supraspinatus fossa of the scapula and the deep fascia that covers the muscle
I- most superior facet on the greater tubercle of the humerus
I- suprascaoular nerve C5,C6
A- initiates the movement
