muscle: spinalis capitis

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Muskeln Übersichtskarte kurze Intervertebrale Obliquus capitis superior Rectus capitis posterior minor Rectus capitis posterior major Obliquus capitis inferior Spinalis cervicis Longissimus cervicis Semispinalis dorsi Levatores costarum Multifidi Quadratus lumborum Longissimus capitis Semispinalis capitis Longissimus cervicis Iliocostalis cervicis Iliocostalis dorsi Longissimus thoracis Spinalis thoracis Iliocostalis lumborum

M. spinalis capitis

may be absent; if present, it is usually fused with the semispinalis capitis.
Origin: spinous processes of the last two cervical and first two thoracic vertebrae
Attachment: External occipital protuberance of the occipital bone
Innervation: medial branches of the rami posteriores from C1 to C3
Antagonists:
Movement: Innervated on both sides: Extension of the spine; innervated on one side: Support of an already assumed ipsilateral lateral flexion or elimination of a contralateral lateral flexion.