T2- E of A quiz 1 Flashcards
Trapezius origin
EOP
Medial 1/3rd of the superior nuchal line
nuchal lig
SP C7-T12
Trapezius insertion
Lat. 1/3rd of the clavicle
Acromion
Spine of scap
Nerve innervation of the trapezius
CN 11 (M) C3,C4 (M,S)
Action of the Trapezius
Of the scap:
Elevation
Retraction
Depression
Rotates glenoid cavity superiorly
Latissimus dorsi origin
SP of T6-12
thoracolumbar fascia
Iliac crest
Rib 8-12
Latissimus dorsi insertion
Floor of the intertubercular sulcus of the humerus
btw the greater and lesser tubercle
Latissimus N
Thoracodorsal N
Root of Thoracodorsal N
Muscle?
C6,C7, C8
Latissimus M
Action of the Latissimus
Of the humerus:
Extends
Adducts
IR
Origin of rhomboid major
SP T2-T5
Insertion of Rhomboid Major
Medial border of the scap
from spine of the scap to inferior angle- on the post. side
N. of Rhomboid major
Dorsal Scapular N
C4,C5
Rhomboid Major action
Retraction of the scap
rotates scap to depress against the glenoid cavity
Fixes scap to thoracic wall
Origin of Rhomboid minor
Nuchal lig
SP of C7-T1
Insertion of Rhomboid Minor
Medial end of the scap spine
N of rhomboid minor
Dorsal Scapular N (C4,C5)
Action of rhomboid minor
Retraction of the scap
rotates scap to depress against the glenoid cavity
Fixes scap to thoracic wall
Origin of Levator Scap
TP C1-C4
Insertion of Levator Scap
Medial border of the scap - sup. to the root of the scap spine
N. of the levator scap
Dorsal Scap N. (C5)
C3, C4
Action of the levator scap
Elevation of the scap
Teres Major origin
(post side)
inferior angle of the scap
Teres Major insertion
Medial lip of the intertubercular sulcus of humerus
N of the teres Major
Subscapular N (C5,C6)
N. root of the subscapular N
C5, C6
Teres Major
Teres minor origin
Lateral border of the scap
superior to major
Teres minor insertion
inf. facet of the greater tubercle of the humerus
post. part of the humerus
N of teres minor
Axillary N (C5,C6)
Root of the axillary N
C5, C6
Teres minor , deltoid
Action of the Teres Minor
ER of the humerus
Supraspinatus origin
Supraspinatus fossa
supraspinatus insertion
Sup. facet of the greter tubercle of humerus