Cranial nerves

Question 1

12 Cranial nerves

Answer 1

• Oh-Olfactory
  
  • most rostrall one or fartehset foward
• Once-Optic
• One-Oculomotor
• Takes-Trochlear
• The-Trigemnial
• Anatomy-Abducens
• Final-Facial
• Very-Vestibulochochlear
• Good-Glossopharyngeal
• Vacations-Vagus
• Are-Accesory
• Heavenly-Hypoglossal
  
  • most caudal nerve ceause it exits the skull most posteriorly

Question 2

What is opening in the cranium for olfactory nerve

Answer 2

• Cribiriform plate , CN1

Question 3

What is the opening for the optic nerve ?

Answer 3

• Optic Canal , CNII

Question 4

Superior orbital fissure is an opening for what?

Answer 4

• Occulomotor(3), Trochlear(IV), Opthalmic Division of Trigeminal(V1)Abducens(6)

Question 5

Foramen rotundum

Answer 5

• Maxillary Division of Trigeminal (V2)

Question 6

Foramen Ovale

Answer 6

• Mandibular Division of Trigeminal(V3)

Question 7

Internal acoustin meatus

Answer 7

• Facial(VII), Vestibulocochlear(VIII)

Question 8

Jugular foramen

Answer 8

• Flossopharyngeal(CNIX)
• Vagus(CNX)
• Accessory(CNXI)

Question 9

Hyoglossal canal

Answer 9

• Hypoglossal(CNXII)

Question 10

What nreves are assoicated with the somatic motor modality?

Answer 10

III,IV,VI,XII

• FUnction: controls the eye essentially ad helps with eye movement and some tongue

Question 11

What nerves are associated with the brnchial motor modality

Answer 11

• V,VII,IX,X,XI
• Function:muscles of mastication , facial expression , of pharynx and larynx , trapezius ,sternomastoid

Question 12

What nerves control the Visceral motor

Answer 12

• CN:III,VII,IX,X
• Function:Ciliary muscle,constrictor pupillae
  
  • Glands of the head except integumentary and parotid
  • Parotid gland
  • All thoracic viscera and abnormal viscera too the splenic flexure

Question 13

What nerves are part of the Viscerla Sensory?

Answer 13

• IX,X
• Function:Visceral afferent information necessary for visceral reflex nasuea, but not pain

Question 14

General Sensory

Answer 14

• V,VII,IX,X
• Pain,temperature ,touch proprioception from the head and neck ,sinuses,and meninges

Question 15

Special Sensory

Answer 15

• I,II,VII,IX,VIII,
• Smell,vision,taste,balance , hearing

Question 16

General rules concenrning Autonomics in the head?

Answer 16

• All sympathetic fibers are postganglionic arising from the supeior cervical ganglion of the sympatehtic trunk. They travel on vessels to the sturcutres that they innervate. Deep petrosal is the only named sympathetic nerve of concern for us
• Preganglionic parasmpatehtic fibers arise from nuclei in the brain stem and synapse at 4 ganglia in the ehad(cilliary, pterygopalatine,otic and submandibular
• Preganglionic parasympathetics are carreid by cranial nerves III,VII,IX,X
• All postganglionic fibers”piggy back” on a branch of the trigmenial to arrive at the structure that they innervate