BACK AND SHOULDER Flashcards
Trapezius
O:Ligamentum nuchae, Superior nuchal line, External occipital protuberance, Spinal processes C7-T12
I: Spine of scapula, Acromion, Lateral ⅓ of scapula
A: Elevate scapula, Retract scapula, Depress scapula ,Rotate scapula to tilt glenoid cavity superiorly
N: CNXI accessory N
Latissimus Dorsi
O : Spinal processes T7-L5, thoracolumbar fascia, sacrum, iliac crest, ribs 10-12
I: Floor of intertubecular sulcus of humerus
A: Extend, adduct, and medially rotate humerus
N: Thoracodorsal
Levator Scapulae
O: Transverse process C1-C4
I: Superior angle of scapula
A: Elevate and rotate scapula
N: Dorsal scapular N
Rhomboid Minor
O: SP C7-T1,ligamentum nuchae
I: Medial border of scapula at spine
A: Retract and rotate scapula
N: Dorsal Scapular N
Rhomboid Major
O:Sp T2-T5
I:Medial border of scapula below spine
A: Retract and rotate scapula
N: Dorsal scapular N
Deltoid
O: Spine of scapula, Acromion, Lateral ⅓ of clavicle
I: Deltoid tuberosity (humerus)
A: Abduct, flex, extend humerus
N: Axillary N
Supraspinatus
O: Supraspinous fossa
I: Greater tubercle
A: Abduct humerus
N: Suprascapular N
Infraspinatus
O: Infraspinous fossa
I: Greater tubercle
A: Laterally rotate humerus
N: Suprascapular N
Teres Minor
O: Lateral border of scapula
I: Greater tubercle
A: Laterally rotate humerus
N: Axillary N
Teres Major
O: Inferior angle of scapula
I: Intertubecular culcus
A: Adducts and medially rotates humerus
N: Lower subscapular N
Subscapularis
O: Subscapular fossa
I: Lesser tubercle of humerus
A: Medially rotates humerus
N: Upper and lower subscapular N
Triceps Brachii
O: Longhead: infrageloid tubercle of scapula
Medial and lateral heads: post surface of humerus
I: Olecranon process of ulna
A: Extends forearm
Long head: extends and adducts arm
N: Radial N
