what are erector muscles
The erector spinae (/spinÃ¦ ËÉ¨ËrÉktÉr/ ËspiËniË-É-rek TÉR-spee) nee is a muscle group of the back in humans and other, animals which extends the vertebral (column bending the spine such that the head moves posteriorly while the chest protrudes). Anteriorly it is also known as sacrospinalis in older. texts