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Small animal anatomy > cranial nerves > Flashcards

cranial nerves Flashcards

1
Q

Olfactory

A

sensory nerve

Smell

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2
Q

Optic

A

Sensory
Through optic canal
Vision

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3
Q

oculomotor(3)

A

Goes through orbital fissure
Motor to dorsal, medial, ventral recti, ventral oblique, levator palpebra
Parasympathetic terminates at ciliary ganglion

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4
Q

Trochlear (4)

A

Motor to dorsal oblique

Exits from orbital fissure

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5
Q

Trigeminal (5)

A 
3 branches
Opthalmic (V1)
Maxillary (V2)
Mandibular (V3)
Both sensory and motor
Comes from trigeminal canal
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6
Q

Opthalmic (V1)

A

Sensory
Exits from orbital fissure
Frontal branch: Sensory to upper eyelid, forehead
Infratrochlear branch: Sensory to skin adjacent to nasal canthus

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7
Q

Maxillary (V2)

A 
Sensory  
From round foramen
Pterygopalantine ganglion: gives Post/PS banches to lacrimal, nasal, and palatine glands 
Zygomatic: lacrimal gland
Pterygopalantine
Infraorbital: skin, upper lip, and nose
Superior alveolar: upper tooth roots
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8
Q

Mandibular (V3)

A

Sensory and motor- from oval foramen
Buccal: sensory to skin of cheek
lingual: sensor to rostral 2/3 of tongue
…

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9
Q

auriculotemporal (V3)

A

sensory

rostroventra pinna, skin of temporal region

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10
Q

Abducent (6)

A

Orbital fissure

Motor to lateral rectus and retractor bulbi

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11
Q

Facial (7)

A

Sensory and motor
Sensory-taste rostral 2/3 of tongue
motor- muscles of facial expression
Branches: auriculopalpebral-to orbicularis oculi
-buccal: muscles of cheek, lip, and nose

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12
Q

Vestiblocochlear (8)

A

Sensory
vestibular n: balance, motion, semicircular canals
Cochlear n: hearing

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13
Q

Glossopharyngeal (9)

A

From jugular foramen
Sensory and motor
Sensory: caudal 1/3 taste, pharyngeal mucosa
Motor: pharyngeal muscles, stylopharyngeus

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14
Q

Vagus (10)

A 
From jugular foramen
Sensory and motor
Proximal gangion: sensory
Distal (nodose) ganglion: sensory
Cranial laryngeal-Motor: cricothyroid muscle  Sensory: laryngeal mucosa
...
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15
Q

parasympathetic

A

3, 7, 9

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16
Q

CN 9 glands

A

Paratoid, zygomatic

17
Q

CN 7 glands

A

Sublingual, mandibular, lacrimal/nasal

18
Q

Accssory (11)

A

Jugular foramen

motor

19
Q

Hypoglossal (12)

A

From Hypoglossal canal

motor

20
Q

What are the 12 cranial nerves

A 
Olfactory
Optic
Oculomotor
Trochlear
Tigeminal
abducent

Small animal anatomy (3 decks)

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