DPT 744 intermediate back

Serratus posterior superior proximal attachment (origin)

Ligamentum nuchae, spinous processes of C7- T3

Serratus posterior superior distal attachment

Ribs 2-5

Serratus posterior superior action

Elevates ribs

Serratus posterior superior innervation

Anterior rami T2-T5

Serratus posterior inferior proximal attachment (origin)

Spinous processes of T11- L3

Serratus posterior inferior distal attachment

Ribs 9-12

Serratus posterior inferior action

Depresses ribs

Serratus posterior inferior innervation

Anterior rami T9-12

Splenius capitis proximal attachment (origin)

Nuchal ligament, spinous processes of C7-T6 vertebrae

Splenius capitis distal attachment

Mastoid process and occipital bone

Splenius capitis action

Unilaterally: laterally flexes neck and rotates the head (same side) Bilaterally: extend the head and neck

Splenius capitis m. innervation

Posterior rami of spinal nerves

Splenius cervicis proximal attachment (origin)

Nuchal ligament, spinous processes of C7-T6 vertebrae

Splenius cervicis distal attachment

Transverse processes of C1-C4

Splenius cervicis m. action

Unilaterally: laterally flexes neck and rotates the head (same side) Bilaterally: extend the head and neck

Splenius cervicis m. innervation

Posterior rami of spinal nerves