Intrinsic Muscles of the Larynx
Obliquus Capitis Inferior Muscle
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The obliquus capitis inferior muscle is a small muscle that lies on the side of the neck and attaches to the base of the skull.
Obliquus Capitis Inferior Muscle
Attachments of the Obliquus Capitis Inferior Muscle
Origin
a. Spinous process of the axis vertebra (C2).
Insertion
a. Transverse process (lateral mass) of atlas vertebra (C1).
Actions of the Obliquus Capitis Inferior Muscle:
a. Rotates Head (= atlas; atlanto-axial joint) to the same side (= ipsilateral or contracted side)
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Nerve to the Obliquus Capitis Inferior Muscle:
a. Suboccipital nerve or posterior (dorsal) primary ramus of C1.