<prompt> All of the following have general visceral efferent fibers except:Facial nerveOlfactory nerveOculomotor nerveGlossopharyngeal nerve  <response>: Ans. b. Olfactory nerve Ref BDC 6e Vol III p351Olfactory nerve does not have general visceral efferent fibers. Functional Division of Cranial Nerve NucleiSensory AfferentMotor Efferent1. General Somatic- Sensory nucleus of trigeminal descending mesencephalic nucleus of Vth nerve- Receive sensation of face1. General Somatic- Supply striated muscle derived from somites involved in tongue eye movements i.e.- Hypoglossal nucleus of 12thQ- Oculomotor nucleus of 3rdQ- Trochlear nucleus of 4thQ- Abducent nucleus of 6thQ2. General Visceral- Nucleus of tractus solitariusQ- Receive taste from tongue epiglottis2. General Visceral- Edinger Westphal nucleusQ of 3rd- Superior salivatory nucleusQ of 7th- Inferior salivatory nucleusQ of 9th- Dorsal motor nucleusQ of 10th Vagus3. Special somatic- 4 vestibular nucleus- 2 cochlear nucleus- Receive stimuli from ear3. Special Visceral or Branchial component- Innervate muscles derived from branchial arches i.e.- Masticatory nucleusQ of 5th- Facial nucleus of 7th- Nucleus ambigusQ of 9th, 10th, 11th- Spinal accessory nucleus of 12th NerveComponentsNucleusLocation of nucleus in brainstemI olfactorySVA--IIopticSSA--IIIOculomotorGSEGVEOculomotor nucleusEdinger-Westphal NucleusSuperior colliculus midbrainIV TrochlearGSETrochlear nucleusInferior colliculus midbrainV TrigeminalGSAGSAGSASVESpinal nucleusMain sensory nucleusMesencephalic nucleusMotor nucleusPons, medulla, C1, C2 segmentPonsPonsPonsVI AbducentGSEAbducent nucleusFacial colliculus PonsVII FacialSVESVAGVEMotor nucleusNucleus of Tractus SolitariusSuperior Salivatory NucleusPonsVIII VestibulocochlearSSASSAVestibular NucleusCochlear NucleusPons, medullaIX GlossopharyngealSVEGVEGVA, SVA, GSAMotorInferior Salivatory NucleusNucleus of Tractus SolitariusMedullaX VagusGVE, SVEGVA. SVA, GSAMotor, ParasympatheticNucleus of Tractus SolitariusMedullaXI AccessorySVESVEMotorSpinal nucleusMedullaUpper five cervical segmentsXII HypoglossalGSEMotorMedullaSVA: Special visceral afferent; SVE: Special visceral efferent; GVA: General visceral afferent; GVE: General visceral efferent 