Which of the following is true with respect to the rhomboid muscles?
A. The origin is the spinous processes of the last cervical (C7) and first four (T1-4) vertebrae
B. The actions include adduction and downward rotation from an upwardly rotated position
C. The insertion is the lateral border of the scapula below the spine
D. It is innervated by the anterior scapular nerve (C5)
