INFRAORBITAL NERVE

 

ORIGIN: Maxillary nerve

COURSE/DISTRIBUTION: This nerve is the terminal branch of the maxillary division of trigeminal nerve which begins at the inferior orbital fissure. This nerve transverses the infraorbital groove in the maxillary bone at the floor of the orbit to enter the face through the infraorbital foramen by passing under the levator labii superioris. It then divides into branches, which supply the lower eye lid (palpebral branch), upper lip (labial branch), nose (nasal branch), mucous membrane of cheek and then provides branches which communicate with facial nerve. It also gives major branches to the upper jaw- the middle superior alveolar nerve and anterior superior alveolar nerve.

BRANCHES

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Branch to mucosa of cheek

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Branch to facial nerve

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Labial branch

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Mucosal branch

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Palpebral branch

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Middle superior alveolar nerve

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Anterior superior alveolar nerve

ROOT: Sensory nucleus of trigeminal nerve at floor of fourth ventricle of the pons.

 

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Electronic School of Medicine
Creator: Oluwole Ogunranti


1 supratrochlear nerve 2 supraorbital nerve 3 mental nerve 4 greater auricular nerve  5 facial nerve 6 greater occipital nerve 7 accessory nerve  8 posterior supraclavicular nerve 9 anterior supraclavicular nerve 10 auriculotemporal nerve 11 zygomaticotemporal nerve 12 cervical branch of facial nerve  13 marginal mandibular nerve 14 lower  buccal branch of facial nerve  15  upper buccal branch of facial nerve 16 infraorbital nerve 17 upper buccal branch of facial nerve  18 transverse cervical nerve 19 zygomatic branch of facial nerve  20 zygomaticofacial nerve 21 temporal branch of facial nerve

 

 

 

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Electronic School of Medicine
Creator: Oluwole Ogunranti