Cutaneous Innervation of the Face PDF

Cutaneous Innervation of the Head Shireen Hafez, DVM, PhD, PGCertVetEd, FHEA, PgDipVetEd Objectives  Cranial Nerves Overview KNOW this v balance...

Cutaneous Innervation of the Head Shireen Hafez, DVM, PhD, PGCertVetEd, FHEA, PgDipVetEd Objectives  Cranial Nerves Overview KNOW this v balance hearing 3,79,10 parasympatheticfunction Trigeminal nerve V – overview V2 V3 Cutaneous Innervation of the Face Fig. 8.20 Moore’s Clinically Oriented Anatomy 9th ed. i Greater occipital n. – posterior ramus of C2 Third (least) occipital n. – posterior ramus of C3 Lesser occipital n. – anterior rami of C2 and C3 Great auricular n. - anterior rami of C2 and C3 Fig. 2.43 Moore’s Clinically Oriented Anatomy 9th ed. Suboccipital Triangle Muscles 8 Fig. 4.16 Gray’s Anatomy for Students  Trigeminal Nerve V Sensory for the face and motor for muscles of mastication V1 Ophthalmic n. V2 Maxillary n. V3 Mandibular n. Fig. 8.20 Moore’s Clinically Oriented Anatomy 9th ed.  How to test for trigeminal? - Ask the person to close their eyes and respond when touch is felt. Fig. 8.20 Moore’s Clinically Oriented Anatomy 9th ed. Ophthalmic n. Sensory NFL Lacrimal n. Lacrimal gland & surrounding Frontal n. Supraorbital n. Supratrochlear n. Nasociliary n. Long ciliary nn. Eyeball Posterior ethmoid n. if Ethmoid air cells and sphenoid sinus Anterior ethmoidal n. Anterior ethmoid canal Internal nasal n. (medial & lateral) External nasal n. Infratrochlear n. Medial wall of orbit inferior to the trochlea, area of Fig. 8.19 Moore’s Clinically Oriented Anatomy 9th ed. medial canthus of upper eyelid  O Ophthalmic n. Sensory Lacrimal n. Lacrimal gland & surrounding o 8 O Lateral superior eyelid Frontal n. Supraorbital n. O Middle superior eyelid and forehead and scalp to vortex Supratrochlear n. O Medial superior eyelid and forehead Nasociliary n. Long ciliary nn. isentation of eyeballtrama notvision Eyeball Posterior ethmoid n. Ethmoid air cells and sphenoid sinus Anterior ethmoidal n. Anterior ethmoid canal Internal nasal n. (medial & lateral) External nasal n. Infratrochlear n. o Medial wall of orbit inferior to the trochlea, area of medial canthus of upper eyelid Fig. 8.19 Moore’s Clinically Oriented Anatomy 9th ed. Ophthalmic nerve branches E o Moore’s Clinically Oriented Anatomy 9th ed. Ophthalmic nerve branches I Moore’s Clinically Oriented Anatomy 9th ed. Ophthalmic n. Sensory Lacrimal n. Lacrimal gland & surrounding Lateral superior eyelid Frontal n. Supraorbital n. Middle superior eyelid and forehead and scalp to vortex Supratrochlear n. Medial superior eyelid and forehead Nasociliary n. Long ciliary nn. Eyeball Posterior ethmoid n. Ethmoid air cells and sphenoid sinus Anterior ethmoidal n. Anterior ethmoid canal Internal nasal n. (medial & lateral) External nasal n. Infratrochlear n. Medial wall of orbit inferior to the trochlea, area of medial canthus of Fig. 8.20 Moore’s Clinically Oriented Anatomy 9th ed. upper eyelid Maxillary n. Sensory Zygomatic n. (passes through inferior orbital fissure) Zygomaticofacial n. O Lateral region of the cheek O 1 Zygomaticotemporal n. Temple, Carries parasympathetic fibers of facial nerve 0 to the lacrimal nerve Posterior superior alveolar train.fi argym Maxillary molar 1am Infraorbital nerve suppymaxteatn we Inferior orbital fissure, Infraorbital canal and foramen Maxillary sinus Middle superior alveolar – maxillary premolars Anterior superior alveolar – maxillary incisors and canine Superior labial inferor external Inferior palpebral External nasal Fig. 8.19 Moore’s Clinically Oriented Anatomy 9th ed. Zygomatic nerve – from V2 oh I Moore’s Clinically Oriented Anatomy 9th ed. Maxillary n. Sensory Zygomatic n. Zygomaticofacial n. Lateral region of the cheek Zygomaticotemporal n. Temple, Carries parasympathetic fibers of facial nerve to the lacrimal nerve 0 Posterior superior alveolar o Os iii Maxillary molar label superor Infraorbital nerve Inferior orbital fissure, Infraorbital canal and foramen Maxillary sinus Middle superior alveolar – maxillary premolars Anterior superior alveolar – maxillary incisors and canine Superior labial Inferior palpebral External nasal Fig. 8.20 Moore’s Clinically Oriented Anatomy 9th ed. Maxillary n. Sensory Nottrigeminal ganglia Ganglionic branches (sensory Pterygopalatine nn.) Nasopalatine n. sphenopalatine foramen – anterior hard palate – enter incisive canal Posterior superior lateral nasal – posterior superior t lateral nasal cavity o nasopalak.ie 0 Lesser palatine n. lesser palatine f. - soft palate retire Greater palatine n. greater palatine f. - hard palate Posterior inferior lateral nasal 0 lespatine AT Pharyngeal nerve – nasopharynx Orbital branches Moore’s Clinically Oriented Anatomy 9th ed.  Mandibular n. Sensory Auriculotemporal n. Sensory to skin of external ear, and temple Distribute parasympathetic fibers from otic ganglion (IX) Buccal n. - buccal mucosa and skin of the cheek Lingual n. - Sensory to anterior 2/3 of tongue and oral floor – a ride for chorda tympani nerve (VII) Inferior alveolar n. Mandibular foramen- canal Inferior dental plexus – mandibular teeth Mental n. – labial gingivae of incisors and skin of lower lip and chin Mylohyoid n. - Sensory to skin between mandibles Motor Masseteric, deep temporal, nerve to lateral pterygoid, nerve to mylohyoid (and anterior belly of digastric), Nerve to medial pterygoid Nerve to tensor villi palatini supply muscles of Nerve to tensor tympani mastication Fig. 8.19 Moore’s Clinically Oriented Anatomy 9th ed. Mandibular nerve branches  Mandibular n. Sensory Auriculotemporal n. Sensory to skin of external ear, and temple Distribute parasympathetic fibers from otic ganglion (IX) train Buccal n. - buccal mucosa and skin of the cheek – a ride for chorda tympani nerve (VII) o Lingual n. - Sensory to anterior 2/3 of tongue and oral floor Inferior alveolar n. Lah of facial ofparasym Mandibular foramen- canal Inferior dental plexus – mandibular teeth Mental n. – labial gingivae of incisors and skin of lower lip and chin Mylohyoid n. - Sensory to skin between mandibles Motor Masseteric, deep temporal, nerve to lateral pterygoid, nerve to mylohyoid ( and anterior belly of digastric), Nerve to medial pterygoid Nerve to tensor villi palatini Fig. 8.20 Moore’s Clinically Oriented Anatomy 9th ed.  Trigeminal Nerve V Face Sensation – Summary p nasouillary at ethmoid Yham kg ugoman miiisromamn.ie maxillary mandibular M.hrYaYeolanemandibular Fig. 8.20 Moore’s Clinically Oriented Anatomy 9th ed. Focus on branches of trigeminal