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Question 1

V - nuclei and their function

Answer 1

nucl. sensibilis pontius n. trigemini –> 90% sensory of face
nucl. motoricus n. trigemini –> masticatory mm.
nucl. tractus spinalis n. trigemini –> 90% pain fiber
nucl. tractus mesencephali n. trigemini

Question 2

V1, V2, V3 - name and where they exit skull

Answer 2

V1- n. opthalmicus: fissura orbitale
V2- n. maxillare: for. alare rostrale
V3- n. mandibulare: for ovale

Question 3

general sensory and motor target of the trigeminal nerve

Answer 3

somato-sensory - skin and deeper tissues of face

somato-motor - masticatory muscles

Question 4

the 3 main braches of V1 - n. opthalmicus and type

Answer 4

SENSORY
n. lacrimalis - skin and lateral angle of eye

n. frontalis
n. nasociliaris

Question 5

n. frontalis branches and target

Answer 5

• n. supratrochlearis -> upper eyelid
• n. supraorbitale -> forehead
• n. sinus frontalium -> mucosa of sinus frontale

Question 6

n. nasociliaris branches and target

Answer 6

• nn. ciliare longi -> anterior aspect of eyeball

- n. ethmoidale -> for. ethmoidale -> M/L rr. to nasal mucosa

Question 7

V2 - branches

Answer 7

n. zygomaticus -> lower eyelid, adjacent skin
- r. zygomaticotemporale
- r. zygomaticofaciale

n. pterigopalatinus
- n. palatinus minor -> soft palate
- n. palatinus major -> hard palate
- n. nasalis caudalis -> mucosa of 1/3rd of nasal cavity, sinus max and hard palate

n. infraorb

Question 8

type, branches of n. infraorbitale and how it runs

Answer 8

SENSORY

n. max -> for. max -> n. infraorbitale
- r. alveolaris superior(caud med rostr), plexus dentale superior
(rostral: incisives and canines)

Question 9

V3 - type and branches

Answer 9

MIXED

1. n. masticatorius
2. n. pterigoideus lat et med(motor)
3. n. auriculotemporale -
4. n. buccalis - sensory cheek
5. n. lingualis
6. n. alveolare inferior

Question 10

n. masticatorius branches and target

Answer 10

n. massetericus -> motor

- nn. temporalis profundi -> motor

Question 11

n. auriculotemporale braches and target

Answer 11

external ear canal, canal leading to eardrum

- n. meatus acusticus externa

Question 12

n. lingualis

Answer 12

sensory to rostral 2/3rds of the tongue

- sublinguale

Question 13

n. alveolaris inferior - branches and target

Answer 13

n. mylohyoideus
for mand-> canalis mandibularis -> for. mentale
- tissue, lower lip, chin
- r. alveolaris inferior(caud med rostr)