The masseter is a thick, somewhat quadrilateral muscle, consisting of two heads, superficial and deep. The nasal group of facial muscles are associated with movements of the noseand the skin around it. Retrieved from " https: Anatomically, they can be divided into upper and lower groups:. Occipitofrontalis occipitalis frontalis Orbicularis oculi depressor supercilii Corrugator supercilii. They migrate from the arch, taking their nerve supply with them. Muscles of the head and neck.
This is known as exposure keratitis.
This article needs additional citations for verification. The test for facial nerve palsy involves raising the eyebrows and closing the eyelids. Oliver Jones Last Updated: They migrate from the arch, taking their nerve supply with them. Levator anguli oris Levator labii superioris Zygomaticus major minor. Closure of the eyelid. The masseter parallels the medial pterygoid musclebut it is stronger and superficial fibres can cause protrusion.