Posterior Axioappendicular Muscles

Question 1

Superficial muscle

Trapezius

Has three parts
Superior
Middle
Inferior

PA
DA
N/S
A

Answer 1

Superior nuchal line, external occiptial protuberance, nuchal ligament, SPs of C7 - T12

Lat 1/3 of clavical, acromion and spine of scapula

Accessory nerve (CN XI) (motor)
C3/4 spinal nerve (pain and proprioception)

Superior: elevates scapula
Middle: retracts scapula
Inferior: depresses scapula

Superior and inferior together: rotate glenoid fossa superiorly.

Question 2

Latissimus dorsi

Superficial muscle

PA
DA
N/S
A

Answer 2

SPs of inferior 6 thoracic vertebra, thoracolumbar fascia, illiac crest, inferior 3-4 ribs

Floor of the intertubercular groove

Thoracodorsal nerve

Extends, adducts and medially rotates the humerus

Question 3

Levator scapulae

Deep muscle

PA
DA
N/S
A

Answer 3

TPs C1-4 vertebrae

Medial border of scapula superior to the spine of the scapula

Dorsal scapular nerve and cervical nerve C3,4

Elevates scapula and inferiorly rotates glenoid fossa

Question 4

Rhomboids

Deep to trapizues
Split into major and minor

PA
DA
N/S
A

Answer 4

Minor: nuchal ligament, SPs of C7-11
Major: SPs of T2-T5

Minor: medial end of scapula spine
Major : medial border of scapula, below the spine

Dorsal scapular nerve

Retract scapula, inferiorly rotate glenoid fossa, fix scapula against thoracic wall