The erector spinae (ES) is one of the core and paraspinal muscles, is a large and superficial muscle that lies just deep to the thoracolumbar fascia and arises from the erector spinae aponeurosis (ESA).

The erector spinae comprise of many muscles and a lot of attachments. Simplify your learning by focusing on the key facts using Kenhub’s muscle anatomy and reference charts! Similar to the other erector spinae groups, iliocostalis muscles are innervated by the lateral branches of the posterior rami of the cervical, thoracic and lumbar spinal ...

They are also known as the sacrospinalis group of muscles. These muscles lie on either side of the spinous processes of the vertebrae and extend throughout the lumbar, thoracic, and cervical regions. The erector spinae is covered in the lumbar and thoracic regions by the thoracolumbar fascia, and in the cervical region by the nuchal ligament.

Many individuals with incomplete spinal cord injury (SCI) exhibit reduced volitional control of trunk muscles, such as impaired voluntary contractions of the erector spinae (ES), due to damage to the neural pathways regulating sensorimotor function. Studies using conventional bipolar electromyography (EMG) showed alterations in the overall, or global, activation of the trunk muscles in people ...

The erector spinae is most massive in the lumbar and thoracic regions. In the lumbar region, it is deep to the latissimus dorsi; in the thoracic region, it is deep to the trapezius and rhomboids. Very little erector spinae is present in the neck. The erector spinae is the principal musculature that works when we bend forward.