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30 Οκτ 2023 · The deep back muscles, also called intrinsic or true back muscles, consist of four layers of muscles: superficial, intermediate, deep and deepest layers. These muscles lie on each side of the vertebral column , deep to the thoracolumbar fascia .
14 Αυγ 2023 · The intrinsic/deep muscles are well developed and extend from the skull base to the sacrum. These deep muscles are enclosed by fascia. The deep back muscles are posterior to the erector spinae. They are short muscles associated with the spinous and transverse processes of the vertebrae.
3 Νοε 2023 · Extrinsic muscles are supplied by branches of the cervical and brachial plexus (latissimus dorsi, levator scapulae, rhomboids), by spinal accessory nerve (trapezius) or by the intercostal and subcostal nerves (serratus posterior muscles).
The Back. Muscles of the Back. The muscles of the back can be arranged into 3 categories based on their location: superficial back muscles, intermediate back muscles and intrinsic back muscles.
3 Νοε 2023 · The true, intrinsic back muscles are the deepest layer of muscles attached to the vertebral column. The muscles of the thoracic area lie deep to the thoracolumbar fascia, while the muscles of the lumbar area lie between the superficial and middle layers of the fascia.
16 Μαρ 2019 · The deep group are the intrinsic muscle group. This article will focus on the deep group. The deep back muscles lie immediately adjacent to the vertebral column and ribs. They are divided into three groups, as shown below. Superficial group: Splenius capitis. Splenius cervicis. Intermediate group: Iliocostalis (lumborum, thoracis, cervicis)
