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The Interspinales are a group of intrinsic paired-muscles of the spine located between spinous processes, primarily in the cervical and lumbar regions.
ATTACHMENTS:
- Spinous processes of C2 to T2.
- Spinous processes of T11 to L5.
ACTIONS:
- Extends the neck and lower trunk at the spinal joints.
NOTES:
- The interspinales are primarily located in the cervical and lumbar regions. They typically extend down to T1 from the cervical spine, and up to T11 from the lumbar region (although they are usually missing at the T12-L1 level). Occasionally, interspinales are found at other nearby locations of the spine.
- Some sources believe that the interspinous muscles are more important for proprioception than for actual movement.
