Posterior axioappendicular muscles

Question 1

what muscles make up the superficial (extrinsic shoulder)

Answer 1

Trapezius
latissimus dorsi

Question 2

what muscles make up the Deep (extrinsic shoulder)

Answer 2

levator scapulae
Rhomboid minor
Rhomboid Major

Question 3

action of the Trapezius

Answer 3

elevate, retract, and depress scapula
- rotate scapula: glenoid cavity up

Question 4

Origin of the Latissimus Dorsi

Answer 4

spinous processes: lower thoracic vertebrae
Thoracolumbar Fascia
Iliac Crest

Question 5

Action of the Latissimus Dorsi

Answer 5

• extend humerus at shoulder joint
• adduct humerus
• medially rotate humerus
  raises body during climbinng

Question 6

Origin of Levator Scapulae

Answer 6

transverse processes C1-C4

Question 7

Insertion of Levator Scapulae

Answer 7

medial border of scapula - at level above spine of scapula

Question 8

Action of levator scapulae

Answer 8

elevate scapula
rotate scapula (glenoid cavity down)

Question 9

Origin of Rhomboid Minor

Answer 9

Spinous Processes: C7 and t1

Question 10

Origin of rhomboid major

Answer 10

Spinous processes T2-T5

Question 11

Insertion of Rhomboid Minor

Answer 11

medial border of scapula - at level of spine of scapula

Question 12

Insertion of Rhomboid Major

Answer 12

Medial Border of scapula - at level below spine of scapula

Question 13

action of Rhomboid Minor and Major

Answer 13

retract scapula
rotate scapula - glenoid cavity down

Question 14

4224 rule

Answer 14

4 levator scapulae TP: C1-C4
2 skip 2
2 rhomboid minor SP: C7-T1
4 Rhomboid major SP: T2-T5