Preganglionic Parasympathetic Cranial Nerves CN III, CN VII, CN IX, Ciliary & Otic Ganglia, Pterygopalatine & Submandibular Ganglia, Chorda Tympani, Greater Petrosal Nerve, Short Ciliary Nerve, Auriculotemporal Nerve, Lacrimal, Sublingual, Submandibular G

Preganglionic Parasympathetic Cranial Nerves CN III, CN VII, CN IX, Ciliary & Otic Ganglia, Pterygopalatine & Submandibular Ganglia, Chorda Tympani, Greater Petrosal Nerve, Short Ciliary Nerve, Auriculotemporal Nerve, Lacrimal, Sublingual, Submandibular Glands, Pupillary Constriction, Sphincter Pupillae, Ciliary Muscle, Sympathetic T1-T3, Superior Cervical Ganglion, Internal Carotid Plexus, Deep Petrosal Nerve, Pupil Dilation, Superior Tarsal Muscle, Horner Syndrome, Stylomastoid Foramen, Facial Nerve Motor Branches Exam Questions Verified and A+ Graded Rationales Latest Updated 2026 Preganglionic parasympathetic cranial nerves CN III CN VII CN IX *these guys go on to synapse on ganglion* Who do postganglionic parasympathetic axons hitchhike with? Branch of CN V (trigeminal) CN III parasympathetic ganglion ciliary ganglion CN III parasympathetic pathway CN III → ciliary ganglion (SYNAPSE) → short ciliary n. → ciliary muscle & constrictor pupillae = CONSTRICT PUPILS CN IX parasympathetic ganglion otic ganglion CN IX parasympathetic pathway CN IX → tympanic n. → lesser petrosal n. → otic ganglion in the IT Fossa (SYNAPSE) → post ganglionic fibers now hitchhike on auriculotemporal n. (V3) → parotid gland What cranial nerve carries parasympathetics to the lacrimal gland? CN VII (facial n.) Where does the motor branch of facial nerve exit? stylomastoid foramen motor branches of facial nerve temporal zygomatic buccal mandibular cervical @ the PAROTID GLAND Parasympathetic pathway to lacrimal gland CN XII → greater petrosal n. → enters the pterygoid canal and becomes nerve of pterygoid canal → enters the PT fossa and SYNAPSES @ PPG → climbs to zygomatic n. (V2) → climbs to lacrimal n. (V1) → innervates lacrimal gland Facial Nerve parasympathetic ganglion for lacrimal gland = PPG What branch of the facial nerve gives parasympathetic innervation to the sublingual and submandibular glands? c