Name

Interspinalis

Pronunciation

(in-ter-spi-NA-lis)

Origin/Proximal Attachment

Spinous process of each vertebra (most prominent in cevical & lumbar regions)

Insertion/Distal Attachment

Onto spinous processes of vertebrae immediately above

Action/Relevance

Weak assistant to vertebral column extension

Innervation

Dorsal rami of spinal nerves