7th Cranial Nerve (Cranial Nerve VII)

 

Muscle Function
Epicranius
(Occipitofrontalis)
Raises eyebrows, wrinkles forehead horizontally
Corrugator Supercilii Wrinkles forehead vertically
Orbicularis Oculi Closes eye
Orbicularis Oris Draws lips together
Zygomaticus Major Elevates angle of the mouth (laughing)
Buccinator Permits smiling; blowing / pursing of the lips

 

Hearing structures innervated by the 7th Cranial nerve:

Stapedius muscle - the function of this muscle is to tension the bones of the middle ear

Sensory functions innervated by the 7th Cranial nerve:

Anterior two thirds of the tongue - taste

Parasympathetic functions innervated by the 7th Cranial nerve:

Salivary and lacrimal glands - salivation and lacrimation (saliva and tearing of the eye)

 

 

 

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