Deep Extrinsic Shoulder Muscles

Question 1

O: Ligamentum nuchae, spines of 7th cervical and 1st thoracic vertebrae
I: Medial border of scapula
N: Dorsal scapular nerve
A: Raises medial border of scapula upward and medially

Answer 1

Rhomboid minor

Question 2

O: 2nd to 5th thoracic spines
I: Medial border of scapula
N: Dorsal Scapular nerve
A: Raises medial border of scapula upward and medially

Answer 2

Rhomboid major

Question 3

O: Upper 8 ribs
I: Medial border and inferior angle of scapula
N: Long thoracic nerve
A: Protractor of shoulder, draws the scapula forward around the thoracic wall, rotates the scapula

Answer 3

Serrated anterior

Question 4

O: Transverse processes of 1st four cervical vertebrae
I: Medial border of scapula
N: C3 C4, dorsal scapular nerve
A: raises medial border of scapula, downward rotator of scapula

Answer 4

Levator scapulae