Name

Semispinalis Thoracics

Pronunciation

(semi-spi-N-lis tho-RA-sus)

Origin/Proximal Attachment

Transverse processes of T6-10

Insertion/Distal Attachment

Spinous processes of T2-6

Action/Relevance

Extension of the vertebral column

rotation to opposite side

Innervation

Lower cervical & upper thoracic nerves