The back anatomy includes the latissimus dorsi, trapezius, erector spinae, rhomboid, and the teres major. On this page, you’ll learn about each of these muscles, their locations and functional anatomy. Function of the Back Muscles There are several individual muscles within the back anatomy, and it’s important to take a quick look at all of
Function of the Back Muscles. The back muscles enable you to stand up straight; support and protect your spine; and reach, pull and extend your arms and torso. Poorly developed back muscles lead to everything from muscle tweaks and pulls to imbalances of the musculature to the all-too-common hunched-over look (the “Neanderthal look”).
Back muscles are divided into two specific groups: the extrinsic muscles that are associated with upper extremity and shoulder movement, and the intrinsic muscles that deal with movements of the vertebral column. Several small muscles in the cervical area of the vertebral column are also important.