The trapezius muscle mass (or traps) are one of the more substantial muscles with the back. The center and lessen traps originate and insert along the C7-T12 vertebrae on the lateral 3rd with the clavicle, the acromion course of action, along with the spine with the scapula. Weighted Pullup - https://hammer-strength-dumbbell55556.elbloglibre.com/33166786/details-fiction-and-back-exercises-with-dumbbells