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Veterinary Anatomy III > THRC.12 > Flashcards

THRC.12 Flashcards

1
Q

CN-V

A

Trigeminal nerve

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2
Q

Summarise trigeminal nerve

A
  • The largest sensory nerve of the head
  • Sensory fibres of the skin
  • Motor fibres to masticatory musculature
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3
Q

The motor fibres of trigeminal nerve originate from…

A

Motor nucleus of the trigeminal nerve

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4
Q

Where is the motor nucleus of the trigeminal nerve located?

A

Metencephalon

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5
Q

Sensory fibres of the trigeminal nerve originate from…

A

Trigeminal ganglion → Sensory trigeminal nuclei

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6
Q

Location of the trigeminal ganglion

A

Petrosal bone

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7
Q

Give the branches of the trigeminal ganglion

A
  • Ophthalmic nerve (V1​)
  • Maxillary nerve (V2)​
  • Mandibular nerve (V3​)​
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8
Q

What is shown?

What do the colours represent?

A

Primary branches of the ophthalmic nerve (CN-V1) (eq)

  • Blue = Sensory
  • Red = Motor
  • Green = Parasympathetic
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9
Q
A

Frontal nerve

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10
Q
A

Lacrimal nerve

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11
Q
A

Ophthalmic nerve (V1)

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12
Q
A

Orbital fissure

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13
Q
A

Nasociliary nerve

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14
Q
A

Ethmoidal foramen

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15
Q
A

Ethmoidal nerve

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16
Q
A

Lamina cribrosa

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17
Q
A

Infratrochlear nerve

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18
Q
A

Ciliary ganglion

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19
Q
A

Pterygopalatine ganglion

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20
Q
A

Major petrosal nerve (VII)

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21
Q

The ophthalmic nerve (V1) shares a sheath with…

A
  • Maxillary nerve (CN-V2)
  • Trochlear nerve (CN-IV)
  • Abducent nerve (CN-VI)
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22
Q
A

Lacrimal gland

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23
Q

Give the branching of the ophthalmic nerve

A
  • Lacrimal nerve
  • Frontal nerve
  • Nasociliary nerve
  • Ethmoidal nerve
  • Infratrochlear nerve
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24
Q

What is shown?

What do the colours represent?

A

Primary branches of the maxillary nerve (CN-V2) (eq)

  • Blue = Sensory
  • Red = Motor
  • Green = Parasympathetic
25
Lacrimal gland with lacrimal nerve
26
Caudal nasal nerve
27
Infraorbital nerve
28
Alveolar branch
29
Incisive branch
30
Minor palatine nerve
31
Minor palatine nerve
32
Zygomatic nerve
33
Minor petrosal nerve
34
Otic ganglion
35
Major pertrosal nerve
36
3
Sphenopalatine foramen
37
Pterygopalatine ganglion
38
4
Foramen palatinum majus
39
2
Maxillary foramen
40
Maxillary nerve (CN-V2) function
Sensory: * Lower eyelid * Upper lip/teeth * Nose
41
Before leaving the cranial cavity, maxillary nerve branches off...
Meningeal branch
42
Give the branching of the maxillary nerve
* Zygomatic nerve * Pterygopalatine nerve * Caudal nasal nerve * Major palatine nerve * Minor palatine nerve * Infraorbital nerve
43
What is shown? What do the colours represent?
_Primary branches of the mandibular nerve (CN-V3) (eq)_ * Blue = Sensory * Red = Motor * Green = Parasympathetic
44
Auriculotemporal nerve
45
Masseteric nerve
46
Pterygoid nerve
47
Mylohyoid nerve
48
Lingual nerve
49
Buccal nerve
50
Inferior alveolar nerve
51
Alveolar nerve
52
Mental nerve
53
2
Mandibular foramen
54
3
Incisura ovalis, foramen lacerum
55
4
Mandibular ganglion
56
Mandibular nerve (CN-V3) function
_Motor:_ * Prehension muscles * Mastication muscles _Sensory:_ * Tongue * Lower teeth * Lower lip
57
Give the branching of the mandibular nerve
* Masticator nerve * Buccal nerve * Auriculotemporal nerve * Lingual nerve * Inferior alveolar nerve
58
Trigeminal nerve exits the cranium via...
_Ophthalmic_: Foramen rotundum/fissura orbitalis _Maxillary_: Foramen rotundum / fissura orbitalis _Mandibular_: Foramen ovalis

Veterinary Anatomy III (124 decks)

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