Vastus Medialis Muscle
Rhomboid Major Muscle
Attachments of Rhomboid Major Muscle: Origin & Insertion
Origin: (proximal attachments)
a. Spinous process of T2-T5 vertabrae.
Insertion: (distal attachments)
a. Medial border of scapula inferior to spine.
Actions on the shoulder (scapula):
a. Retracts the medial border of scapula while it downwardly rotates the lateral angle.
b. Elevates the medial border of scapula while it downwardly rotates the lateral angle.
Innervation of Rhomboid Major Muscle:
- Dorsal scapular nerve (C5).