CN V Flashcards
1
Q
Which CN are associated with Trigeminal sensory nuclei and which functional group
A
- GSA
- CN V, VII, IX, X
2
Q
What are the 3 subdivisions of the Trigeminal sensory nuclei
A
Mesncephalic nucleus
Chief nucleus
Spinal nucleus
3
Q
Trigeminal mesencephalic nucleus general
A
Proprioception
Projects to motor nucleus of V to control jaw jerk reflex an force of bite
4
Q
Trigeminal Chief general
A
2 point discrimination, pressure
5
Q
Trigeminal Spinal nucleus general
A
Pain, temperature, light touch
6
Q
Trigeminla nerve division
Type and path
A
- Opthalmic (V1)
- Sensory
- Superior orbital fissure
- Maxillary (V2)
- Sensory
- Rotundum
- Mandible (V3)
- Motor and sensory
- Ovale
7
Q
Trigeminal course and distribution
A
- Largest CN
- Anterior pons
- Small motor root
- Large sensory root
- Posterior cranial fossa
- Apex of petrous part of temporal bine in middle cranial fossa
- Sensory root forms trigeminal ganglion
8
Q
CNV1
Function
A
GSA
Sensation of forehead
Scalp
Eyelids
Nose
Eye
Mucous membrane of nose and sunuses
9
Q
CN V1
Origin
Associated nuclei
A
Target tissues, via trigeminal (semilunar) ganglion
Trigeminal sensory nucleus
10
Q
3 major branches of Opthalmic Division
A
Frontal n
Lacrimal n
Nasociliary n
11
Q
Frontal n
type
subdivisions
A
- CN V1–> Frontal n
- ALL SENSORY
- Supraorbital n
- Supratrochlear n
12
Q
Nasociliary n
Subdivisions
A
- CN V1–> Nasociliary n
- Posterior ethmoid n
- Anterior ethmoid n
- External nasal n
- Infratrochlear n
- Long ciliary nn(2-3 branches)
- Short ciliary nn (8-12 branches) via ciliary ganglion
13
Q
Frontal n. subdivisions functions
A
- Supraorbital n.
- Frontal sinus, skin superior to lateral orbit, and lateral upper eyelid
- Supratrochlear n.
- Frontal sinus, skin superior to medial orbit and medial upper eyelid
14
Q
Lacrimal n. function
A
- Conjuctiva
- lacrimal gland
- Skin of upper eyelid
- Parasympathetic hitch-hikers
- Communicates with zygomatic n of V2
- CN 7 hitch hikes
- Associated with Pterygopalatine ganglion
15
Q
Nasociliary subdivisions
A
- Posterior ethmoid
- Anterior ethmoid
- External nasal
- Infratrochlear n
- Long ciliary
- SHort ciliary
16
Q
Posterior ethmoid
Function
Path
A
Ethmoid sinus, sphenoid sinus
Posterior ethmoid foramen
17
Q
Anterior ethmoid
Function
Path
A
Ethmmoid sinus Nasal cavity
Ant ethmoid foramen
18
Q
External nasal
A
Apex of nose
19
Q
Infratrochlear n
A
Conjuctiva, lacrimal structures, bridge of nose, eyelids
20
Q
Long Ciliary
A
Sclera and cornea
Sympathetic runs along with it
21
Q
Short Ciliary
A
- Ciliary body and iris
- Hitch hikes with CN3, edinger-westphal
- Sympathetics
22
Q
CN V2
Function
O
AN
Path
A
- GSA
- Sensation of midface, lower eyelid
- Mucous mebrane of nose and maxillary sinus
- Upper lip
- Maxillary teeth and palate
- Trigeminal Semilunar Ganglion
- AN Trigeminal Sensory nucleus
- Path: Foramen rotundum
23
Q
V2 Major divisions
A
- Posterior superior Alveolar
- Infraorbital
- Zygomatic
- Ganglionic branches
- Pharyngeal
- Nasopalatine
- Greater/Anterior palatine
- Lesses/Posterior palatine
24
Q
SUbdivisions in V2
A
- Infraorbital
- Middle superior alveolar
- Anterior superios alveolar
- Nasal
- Palpebrael
- Superior labial
- Zygomatic
- Communication to lacrimal
- Zygomaticofacial
- Zygomaticotemporal
25
Posterior Superior Alveolar
* Passes through Posterior Superior Alveolar Foramen
* Maxillary sinus
* Buccal gingiva along max molars
* Maxillary Molars (1,2,3,14,15,16)
26
Infraorbital
* Buccal gingiva of max central incisor, lateral incisor, canice, premolars
* Skin of inferior orbit
* Medial upper lip
27
Middle Superior Alveolar
* Maxillary sinus
* Maxillary premolars
28
Anterior Superior Alveolar n
* Maxillary Sinus
* Max central incisor
* Max lateral incisor
* Mar canine
29
Nasal n.
Path and function
* Infraorbital foramen
* Nasal cavity
* Nasal septum
30
Palpebrael n.
Path and finction
* Inferiororbital foramen
* Skin of lower eyelid
31
Superior labial n
Path and function
* Infraorbital foramen
* Skin of upper lip
32
Zygomatic subdivisions
* Communication to lacrimal n.
* Zygomaticofacial
* Zygomaticotemporal
33
Communication to lacrimal
Path and function
* Pterygopalatine fossa
* CN VII hitch hikes, carries parasympathetic from pterygopalatine ganglion to lacrimalof V1
34
Zygomaticofacial n
Path and function
* zygomaticofacial foramen
* skin inferior and lateral to orbit
* Lateral upperr lip
35
Zygomaticotemporal
Path and function
* Zygomaticotemporal foramen
* Skin superior and lateral to orbit
36
Ganglionic branches
Communication bte pterygopalatine ganglion and V2
VII hitchhikers
Carries parasympathetic from pterygopalatine ganglion to V2
37
Pharyngeal n.
Path and function
Pharyngeal canal
Nasopharynx
38
Nasopalatine n
Path and function
* Spenopalatine foramen and Incisive canal
* Hard palate
* Palatal gingiva
* Mucosa between canines
39
Greater/Anterior Palatine n
Path and function
* Palatine canal--\> Greater anterior palatine canal
* Hard palate
* Palatal gingiva/mucosa between premolars/molars
40
Lesser/Posterior palatine n.
Path and function
* Paatine canal--\> Lesser/Posterior canal
* Soft palate
41
Which nerves innervate the maxillary sinus?
MSA
PSA
ASA
42
Which nerves innervate the hard palate
Nasopalatine
Greater/Lesser Palatine
43
How is the CN V3 divided
* Anterior
* Primarily Motor
* Medial pterygoid
* Long buccal
* Masseteric
* Deep temporal
* Lateral pterygoid
* Posterior
* Primarily sensory
* Mylohyoid
* Inferior alveolar
* Incisive
* Mental
* Lingual
* Auriculotemporal
44
CN V3
GSA
Function
O
AN
* Sensation of
* Scalp
* External ear
* Lower face
* Mandibular teeth
* tongue
* Floor of mouth
* O: Trigeminal (semilunar) ganglion
* AN: Trigeminal Sensory nucleus
45
CN V3
SVE
Function
O
* Motor to
* Muscles of mastication
* Mylohyoid
* Anterior digastric
* Tensor tympani
* Tensor veli palitini
* Muscles of 1st pharyngeal arch
* O: Trigeminal motor nucleus
46
List the divisions of V3
* Meningeal
* Tensor tympani
* Tensor veli palitini
* Medial Pterygoid
* Long buccal
* Masseteric
* Deep temporal
* Lateral pterygoid
* Mylohyoid
* Inferior alveolar
* Incisive
* Mental
* Lingual
* Auriculotemporal
47
Meningeal n.
Sensory to meninges
48
Tensor tympani n.
Motor to tensor tympani
49
Tensor veli palitini n.
Motor to Tensor veli palitini
50
Medial pterygoid n.
Motor to medial pterygoid
51
Long buccal
* Sensory to
* Buccal gingiva around mandibular molars
* Cheek
* Lateral lower lip
52
Masseteric n.
* Motor to masseter
* Sensory to TMJ
53
Deep temporal n.
* Motor to temporalis
* Sensory to TMJ
54
Lateral pterygoid n.
Motor to lateral pterygoid
55
Mylohyoid n.
* Motor to
* Mylohyoid
* Anterior digastric
56
Inferior Alveolar n.
* Sensory to
* ALL mandibular teeth via Incisive n.
* 2nd premolars
* Molars
57
Incisive n.
* Sensory
* Mandibular teeth from 1st premolar anterior
58
Mental n.
* Sensory
* Buccal gingiva from 1st PM
* Chin
* Medial lower lip
59
Lingual n.
* Sensory
* Lingual gingiva of mandibular teeth,
* Taste anterior 2/3 of tongue
* Parasympathetic
* CN VII hitch-hikers from submandibular ganglion--\> Submandibular and sublingual glands
60
Auriculotemporal n.
* Sensory
* TMJ and Capsule
* Skin superior to ear and around temple
* Parasympathetic
* CN IX hitch hikers from otic ganglion to parotid gland
