Spinalis colli muscle

Muscles · Latin: Musculus spinalis colli

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Spinalis cervicis, or spinalis colli, is an inconstant muscle, which arises from the lower part of the nuchal ligament, the spinous process of the seventh cervical, and sometimes from the spinous processes of the first and second thoracic vertebrae, and is inserted into the spinous process of the axis, and occasionally into the spinous processes of the two cervical vertebrae below it.

Definition from Wikipedia, CC BY-SA 4.0.