Back Muscle Origin, Insertion, Innervation

Rhomboid origin

nuchal ligament and spinous processes of C7-T5

Rhomboid innervation

Dorsal scapular nerve (C4, C5)

Serratus posterior inferior insertion

spinous process of T11-L2

obliquus capitis superior origin

Transverse process of C1

obliquus capitis inferior origin

spinous process of C2

obliquus capitis inferior insertion

Transverse process of C1

rectus capitus posterior minor origin

posterior tubercule on posterior arch of C1

Trapezius origin

medial portion of superior nuchal line, occipital protuberance, spinous process of C7-T12

Latissimus dorsi origin

spinous process of T7-T12, thoracolumbar fascia, iliac crest, inferior ribs

Latissimus dorsi innervation

Thoracodorsal nerve (C6-C8)

Levator scapulae innervation

Dorsal scapular nerve C5 and cervical spinal nerves C3 and C4

Serratus posterior superior origin

nuchal ligament, spinous processes of C7-T3

Serratus posterior superior insertion

superior borders of ribs 2-4

Serratus posterior inferior innervation

9th to 11th intercostal nerves, subcostal nerve (T12)

obliquus capitis superior insertion

occipital bone between superior and inferior nuchal lines

rectus capitis posterior major insertion

Lateral part of inferior nuchal line of occipital bone

rectus capitus posterior minor insertion

medial third of inferior nuchal line

Serratus posterior superior innervation

2nd-5th intercostal nerves

Trapezius insertion

lateral portion of clavicle, acromion, spine of scapula

Trapezius innervation

spinal accessory nerve (CH XI) and C3/C4 spinal nerves

Latissimus dorsi insertion

floor of intertubercular sulcus of humerus

Levator scapulae origin

posterior tuburcles of transverse process of C1-C4

Levator scapulae insertion

medial border of scapula superior to spine

Rhomboid insertion

medial border of scapular spine

Serratus posterior inferior origin

inferior borders of 8th-12th ribs

Innervation for all deep back muscles

dorsal rami

attachment of the erector spinae

tendon to the pelvis

rectus capitis posterior major origin

spinous process of C2

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