Back Muscles Diagram Image
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Certain back muscles extend to other areas, like the shoulders, upper arms, and thighs. There are three different types of muscles in the body: the heart muscle, smooth muscles, and skeletal muscles. The back muscles are skeletal muscles. They support bones, in this case, the vertebrae.
It comprises the vertebral column (spine) and two compartments of back muscles; extrinsic and intrinsic. The back functions are many, such as to house and protect the spinal cord, hold the body and head upright, and adjust the movements of the upper and lower limbs .