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Mimetic muscles
Mimetic muscles of the scalp and muscles in the region of the eyelids
Muscle | Origin | Insertion | Function |
---|---|---|---|
M. Occipitofrontalis -venter occipitalis | Linea nuchae superior | Galea aponeurotica | Lifting of the eyebrows and upper eyelids; Produces horisontal wrinkles of the forid; Expression of astonishment |
M. Occipitofrontalis -venter fraontalis | Galea aponeurotica | Skin of the eyebrow | Lifting of the eyebrows and upper eyelids; Produces horisontal wrinkles of the forid; Expression of astonishment |
M. Corrugator supercili | Glabella; Margo supraorbitalis | Skin of the eyebrow | Pulls the skin of the eyebrows downward and medially; Produces vertical wrinkles of the forid; Expression of the thinker |
M. Orbicularis oculi -pars orbitalis | Lig. palpebrale mediale | Lig. palpebrale mediale | Acts as sphincter |
M. Orbicularis oculi -pars palpebralis | Lig. palpebrale mediale | Lig. palpebrale laterale | Closes the eyelid |
M. Orbicularis oculi -pars lacrimalis | Crista lacrimalis | Lacrimal sac | Expands the lacrimal sac |