TRIGEMINAL NERVE (CN v) Flashcards

1
Q

Nervus Trigeminus

Intro/ in general

A
  1. GENERAL STRUCTURE:
    = Largest SENSORY NERVE of the HEAD
  • TRIGEMINAL GANGLION
    V1: OPTHALMICUS (S)
    V2: MAXILLARE (S)
    V3: MANDIBULAE (S+M)
  1. FUNCTION:
    - Afferent Sensory (V1,V2,V3)=Facial sensation
  • V1 OPTHALMICUS —> Cornea & Upper eyelid
  • V2 MAXILLARE —> Muzzle & Ventral eyelid
  • V3 MANDIBULAE —> Mandibular Skin
  • Efferent Motor (V3)
    —> Mastrication, Tensor Tympani of Middle Ear
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2
Q

N. Trigeminus Portions

A
  1. N. OPTHALMICUS (V1, S)
    - Sulcus n. Opthalmici
    —> Fissura orbitalis
  2. N. MAXILLARIS (V2, S)
    - Sulcus N. maxillaris
    —> Foramen ROTUNDUM
  3. N. MANDIBULARIS (V3, S&M)
    - Foramen Ovale —> Foramen Mandibulare
PORTIO MAJOR (RADIX Sensoria)
Ggl terminale s. Semilunare Gasseri
- V2: Nucl. sensibilis pontis n. V
- V3: Nucl. Tractus Spinalis n. V
- V1: Nucl. Tractus mesencephali n. V
PORTIO MINOR (RADIX motorica)
- V3: Nucleus motorius n. V.
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3
Q
TRIGEMINAL NERVE (V)
V1
A

V1: OPHTALMICUS *3

  1. N. FRONTALIS
    a. N. Supratrochlearis (eq)
    b. N. Supraorbitalis (eq)
  2. N. LACRIMALIS
    a. Nn. Glandularis
    b. Nn. Palpebralis
    R. Communicans
  3. N. NASOLACRIMALIS
    a. N. Infratrochlearis
    b. Nn. Ciliares
    c. N. Ethmoidalis
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4
Q

TRIGEMINAL nerve V
V1
N.Frontalis

A
FRONTAL NERVE
*2
1. N. Supratrochlearis
- r. Palpebralis superior
 (at ANGULUS occuli medialis)
  1. N. Supraorbitalis
    - r. Auricularis rostralis
    —> Plexus auricularis rostralis
    - Sinus Frontalis
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5
Q

TRIGEMINAL nerve V
V1
N.LACRIMALIS

A
*3
Angulus lateralis oculi 
SYMP: 
1. Rr. Glandularis
2. Rr. Palpebralis 

1+2 EX PLEXUS CAROTICUS INTERNA

PARASYMP:
3. R. Communicans n. Zygomatici Ex Gld PTERYGOPALATINI

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6
Q

TRIGEMINAL nerve V
V1
N.NASOLACRIMALIS

A

Orbita, pars medialis

PARASYMPH:

  1. Nn. Ciliares
  2. N. Infratrochlearis - angulus medialis oculi
    - Rr. Palpebralis Inferior (Ru: R.CORNUALIS)
    - Distal lacrimal Apperatus
    - Sinus

PARASYMPATHETIC

  1. N. Ethmoidalis - Foramen ethmoidale —> Lamina Cribrosa —> Cavum Nasi
    - R. Nasalis (lat et med)
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7
Q

TRIGEMINAL nerve V
V2.
N. Maxillare

A

*3

  1. N.Zygomaticus
    - N.zygomaticotemporalis
    N.auricularis Rostralis
    R. Communicans —> N.lacrimalis
    N. Palpebralis superior
  • N. ZygomaticoFacialis
    R.Palpebralis inferior
  1. N.Pterygopalatinum
    - N. Nasalis caudalis
    - N. Palatinus Major
    - N. Palatinus Minor
  2. N.Infraorbitalis
    - Nn. Nasales externa et interna
    - Nn. Alveolaria maxillae
    - Nn. Labiales Maxillae

CANALS:

  1. Canalis Orbitalis
    - Foramen Maxillare
    - Foramen infraorbitale
    - Foramen sphenopalatinum
  2. Canalis Palatinus
    - Foramen Palatinus Majus
    - Foramen Palatinus Minus
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8
Q

TRIGEMINAL nerve V

V3

A
N.Mandibulare
* 7
1. N.MASTICATORIUS
—> incisura mandibulare
For: 
A. M. temporalis profundus
B. M. masseterica 
  1. N.PTERYGOIDEUS
    —> Ggl OTICUM
  2. N. TENSORIUS TYMPANI—> Cavum tympani
  3. N.BUCCALIS —> Mucous buccalis
    A. R. Labialis mandibularis
    B. R. Mandibularis
  4. N.AURICULOTEMPORALIS
    —> Plexus Parotideus
  5. N.LINGUALIS
    A. R.digastricus
    B. R. Mylohyoideus
    C. N. Sublingualis
7. N. ALVEOLARIS MANDIBUlARIS
A. Rr. Alveolaris mandibularis (caud,med,rostr)
- R. Dentals
- R. Gingivalis
B. N. Mentalis
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