review

Question 1

trapezius action and innervation

Answer 1

• elevates scap, ipsilateral lateral flexion, contralateral rotation
• retracts scap
• depress scap
• spinal accessory nerve CN V1, C3, C4

Question 2

levator scap O and I

Answer 2

TP C1-C4 > superior angle of scap

Question 3

Levator scap action and innervation

Answer 3

elevates scap

dorsal scap nerve C4, C5

Question 4

Rhomboids minor and major O and I

Answer 4

1. SP C5-T1 > root of spine of scap medial border

2. SP T2-T5 > medial border of scap inferior to spine

Question 5

Rhomboids innervation and action

Answer 5

• retract scap, fix to wall, inferior rotate glenoid

- dorsal scap nerve C4, C5

Question 6

Latissimus dorsi O and I

Answer 6

SP T7-T12, inferior angle of scap, ribs 9-12, iliac crest > floor of intertubercle groove of humerus

Question 7

Lats innervation and action

Answer 7

thoracodorsal nerve C6-C8

internal rotation, adduction, extension

Question 8

trapezius O and I

Answer 8

EOP, nuchal lig C1-C7 > lateral 1/3 clavicle
SP T1-T4 > acromion
SP T5-T12 > spine of scap