Anatomy
Origin:
Occipitalis has no bony origin. Its fibres are continuous with those of the muscles procerus and corrgator supercilii.
Insertion:
Fibres join the galea aponeurotica (epicranial aponeurosis) below the coronal suture.
Key Relations:
Many consider frontalis and occipitalis as one muscle (called occipitofrontalis) with an aponeurotic tendon between two bellies- a frontal belly and an occipital belly.
Functions
Tenses the scalp.
Supply
Nerve Supply:
Posterior auricular branch of the facial nerve (CN 7).
Blood Supply:
Muscular branch of the occipital artery.
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