Anatomy Of Upper Back Muscle. The extrinsic back muscles are located in the back but act to produce movements of the shoulder and assist respiration. It originates from the vertebrae and is inserted into the scapulae.
Latissimus dorsi lats the largest muscle in the upper part of your body. The extrinsic muscles of the back as stated earlier functionally belong to the muscles of the upper limb but are found superficially on the posterior trunk. They make up your upper back muscle anatomy although some of them also extend to your lower back.
Anatomy Chart courtesy of FCIT The Teres Major muscle originates on the outer lateral edge of the scapula and attaches to the humerus.
A good memory aid for this is BBC b iceps b rachialis c oracobrachialis. Pectoralis major pectoralis minor serratus anterior and subclaviusCollectively these muscles are involved in movement and stabilisation of the scapula as well as movements of. Superficial extrinsic muscles of the back. Ad Non-Invasive Safe Pain Solutions.
