Trapezius & Rhomboid Muscles
Lower Trapezius - Insertion
Base of the scapular spine
Rhomboids (major & minor) - Innervation
Dorsal Scapular Nerve (C4, C5)
Upper Trapezius - Insertion
Lateral 1/3 clavicle and acromion
Rhomboids (major & minor) - Insertion
Medial border of scapula from root of spine to inferior angle
Middle Trapezius - Action
Scapular Retraction
Lower Trapezius - Action
Scapular depression, retraction, upward rotation
Upper Trapezius - Action
Scapular elevation and upward rotation Neck extension, sidebending and rotation opposite side
Rhomboids (major & minor) - Action
Scapular retraction, elevation and downward rotation
Lower Trapezius - Innervation
Spinal Accessory Nerve (C3 - C4)
Middle Trapezius - Innervation
Spinal Accessory Nerve (C3 - C4)
Upper Trapezius - Innervation
Spinal Accessory Nerve (C3 - C4)
Middle Trapezius - Insertion
Spine of scapula and acromion
Rhomboids (major & minor) - Origin
Spinous processes C7 - T5
Middle Trapezius - Origin
Spinous processes T1 - T5
Lower Trapezius - Origin
Spinous processes T6 - T12
Upper Trapezius - Origin
Superior nuchal line, external occipital protuberance, ligamentum nuchae