Cranial Nerves

Cranial Nerves

1. 5) Trigeminal (GSE+GSA)

   • A) Opthalmic (GSA)
     • Emerges through Orbital fissure
     • 1) Lacrimal N.
       • Lacrimal Gland (GSA).
       • Skin=> Lateral angle of eye (GSA)
     • 2) Frontal N
       • Upper Eyelid, forehead, Frontal Sinus (GSA)
     • 3) NasoCiliary N
       • Ehtmoidal N.
         • Nose: Muscosa + Skin
       • Long Ciliary N.
         • Sensitive tissue + Cornea
       • Infratrochlear N.
         • Medial Angle of Eye.
         • Rostral Frontal Sinus
   • B) Maxillary N.
     • Enters alar canal w/ Round Foramen, Emerges from Rostral Alar Foramen
     • 1) Zygomatic N.
       • Lacrimal Glands (GVA)
       • Lateral Upper + Lower Eyelid (GSA)
     • 2) Pterygopalatine N (GSA)
       • Major + Minor Palatine Nn.
         • Palatine Mucosa
     • 3) Infraorbital N.
       • Superior Alveolar Branches (GSA)
         • Canine, Incisors, Upper Cheek Teeth
         • Muzzle/ Nasal Plate
   • C) Mandibular
     • 1) Buccal N. (GSA)
       • Mucosa + Skin of Cheek
     • 2) AuriculoTemporal N.
       • Skin of Temporal Region
     • Terminal Branches
       • 3) Lingual N.
         • Rostral 2/3 tongue (no taste)
       • 4) Inferior Alveolar N.
         • Myohyloid N.
           • Myolohyoid M. - Rostral Belly of Digastricus M.
         • Lower Cheek teeth. @ Mandibular canal (GSA)
         • Mental Nerve - Mental Foramen
           • Lower Lip + Chin (GSA)

2. 7) Facial

   • 1) Greater/ Major Petrosal N. (GVE-P)
     • Lacrimal Gland
     • Dorsal Buccal Glands
     • Nasal + Buccal Mucosal Glands
   • 2) Stapedial N.
     • Stapedius Muscle (Inner ear) (GSE)
   • 3) Chorda Tympany N. (SVA + GVA)
     • Fungiform Taste Buds (SVA)
     • Rostral Lingual Mucosa (GVA)
     • Salivary Glands (GVE-P)
       • Mandibular
       • Sublingual
   • 4) Internal + Caudal Auricular Nn. (GSE + GSA)
     • Musc. Ext. Ear,
     • Hyoid Muscle
     • Caudal Belly of Digastricus (GSE)
   • 5) Auriculopalpebral N. (GSE)
     • Musc. Of Eyelid
     • Muscles infront External Ear
   • 6) Dorsal Buccal N. (GSE)
     • Crosses Masseter m. - MUZZLE
   • 7) Ventral Buccal N. (GSE)
     • Cheek, Lip, Nostrils
   • Efferent
     • Visceral

3. 10) Vagus N. (Mixed, All but SSA)

   • Jugular Foramen
     • Proximal Ganglion- w/i Jugular Foramen  Distal Ganglion- outside Tympano-Occipital Fissure. Joins the Sympathetic Trunk
     • Neck
       • Auricular N. (GSA)
         • External ear
         • Ear Canal
       • Pharyngeal Branches
         • Caudal Pharyngeal Muscles (GSE)
         • Cranial Esophagus (GSE, GVA)
       • Cranial Laryngeal N.
         • Cricothyroid M. (GSE)
         • Laryngeal Mucosa
     • Thorax
       • Recurrent Laryngeal N.
       • Thoracic Viscera (GVE-P)
       • Dorsal + Ventral Vagal Trunks (GVE-P)
     • Abdomen
       • Nerve Plexuses - Parasymp
         • Cranial Mesenteric
         • Celiac

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