Teres major Muscle Anatomy The teres major muscle is one of the six muscles within the scapulohumeral muscle group. This muscle is commonly confused as a rotator cuff muscle, but it is not because it does not attach to the capsule of the shoulder joint, unlike the teres minor muscle. Origin : It originates from…
Teres Minor Muscle Anatomy The teres minor is a slim, narrow muscle within the rotator cuff, located in the shoulder. It also contributes to the rotator cuff, a capsule of muscles and tendons that collectively stabilize the glenohumeral joint. Origin It originates from the lateral border and adjacent posterior surface of the scapula. Insertion It…
Supraspinatus Muscle Anatomy The supraspinatus is a relatively small muscle of the upper back that runs from the supraspinatous fossa superior portion of the scapula (shoulder blade) to the greater tubercle of the humerus. Supraspinatus with the other three muscles join to grouping rotator cuff and abduction of the shoulder joint is done. The spine…
Rhomboid Minor Muscle Anatomy The Rhomboid minor is a small skeletal muscle on the back that connects the scapula with the vertebrae of the spinal column. Along with the Rhomboid major, it keeps the scapulae pressed against the thoracic wall. Origin It originates from, Insertion It inserts into a small area of the medial border…
Levator Scapulae Muscle Anatomy The levator scapulae muscle is a long muscle of the shoulder girdle. It is situated at the back and the side of the neck, and as its name suggests – its main function is to lift the scapula. The position of the muscle defines its supportive role in the vertebral column….
Latissimus dorsi Muscle Anatomy Latissimus Dorsi is a large, flat triangular muscle that covers a large area of the lower back and is overlapped by the trapezius. It is also known as the Broadest muscle of the back. The muscle runs between the trunk, via an extensive attachment and the humerus by a narrow tendon….
Trapezius Muscle Anatomy The trapezius (or trapezoid) is a large paired surface muscle that extends longitudinally from the occipital bone to the lower thoracic vertebrae of the spine and laterally to the spine of the scapula. It moves the scapula and supports the arm. The descending (superior), ascending (inferior), and middle sections make up the…
Subclavius Muscle Anatomy The subclavius is a small triangular muscle, placed between the clavicle and the first rib. Along with the pectoralis major and pectoralis minor muscles, the subclavius muscle makes up the anterior wall of the axilla. Origin The subclavius muscle originates from the first rib. Specifically, this muscle begins in the area between…
Pectoralis minor muscle Anatomy The pectoralis minor muscle is triangular in shape and is located under the pectoralis major, and both form the anterior wall of the axilla. Origin It originates from the, Insertion  It inserts on the medial border and upper surface of the coracoid process. Nerve supply It is supplied by the medial…
Platysma Muscle Anatomy This muscle covers a portion of a neck muscle known as the sternocleidomastoid. The platysma muscle is expansive in size, with a broad width that spans the collarbone, or clavicle, and the side of the neck. Its point of origination is the upper portions of the pectoral, or chest, and the deltoid,…
