Muscle Layers of the back and misc links
written by: admin
Date Written: 7/20/10
Last Updated: 5/30/19
Areas that I am weak
foot bones
Thoracic cage anatomy
Skull Bones
Knee Tendons
The
Pulmonary Vein carries oxygenated blood.
Muscle Layers of the back
Superficial to Deep
ref
- Trapezius & Latissimus Dorsi.
- Levator Scapula, Rhomboid Major, Rhomboid Minor.
- Serratus posterior superior & Serratus Posterior Inferior.
- Splenius Capitis & Cervicis
- Erector Spinae group (also known as the Sacrospinalis muscle). From lateral to medial:
- 3 Iliocostalis (Lumborum, Thoracis, Cervicis)
- 3 Longissimus (Thoracis, Cervicis, Capitis)
- 3 Spinalis (Thoracis, Cervicis, Capitis)
- Transversospinalis is the deepest layer. From superficial to deepest: ref
- 3 Semispinalis (Thoracis, Cervicis, Capitis)
- 3 Multifidis (Lumborum, Thoracis, Cervicis)
- 3 Rotatores (Lumborum, Thoracis, Cervicis)
Notes:
- Iliocostalis Thoracis muscles attach from the inferior 6 ribs to the superior 6 ribs.
- Interspinalis, not listed above, is largely absent from the thoracic region.
- Layers 4 – 6 are innervated by Dorsal Primary Rami.
Clivus –– anterior portion of the foramen magnum.
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