Origin of spinalis cervicis?

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Multiple Choice

Origin of spinalis cervicis?

Explanation:
The spinalis cervicis is a deep intrinsic back muscle whose origins are the lower part of the ligamentum nuchae and the spinous processes of the lower cervical to upper thoracic vertebrae (C7 through T2). From these points, the fibers ascend to insert on the upper cervical spine, allowing neck extension and helping maintain posture. The distribution here explains why this muscle is the neck’s medial, short-segment extensor. The iliac crest and thoracolumbar fascia belong to the latissimus dorsi, not spinalis cervicis; spinous processes of T1–T6 describe the spinalis thoracis origin rather than cervicis; and the transverse processes of C1–C3 pertain to other deep back muscles.

The spinalis cervicis is a deep intrinsic back muscle whose origins are the lower part of the ligamentum nuchae and the spinous processes of the lower cervical to upper thoracic vertebrae (C7 through T2). From these points, the fibers ascend to insert on the upper cervical spine, allowing neck extension and helping maintain posture. The distribution here explains why this muscle is the neck’s medial, short-segment extensor. The iliac crest and thoracolumbar fascia belong to the latissimus dorsi, not spinalis cervicis; spinous processes of T1–T6 describe the spinalis thoracis origin rather than cervicis; and the transverse processes of C1–C3 pertain to other deep back muscles.

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