Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

202: Theme 1, Fundamental neuroscience and the brain > Cranial nerves > Flashcards

Cranial nerves Flashcards

You may prefer our related Brainscape-certified flashcards:
The Brain flashcards
1
Q

CN1

  • Name
  • Exit
  • Type + Function
A

Olfactory nerve
- Cribriform plate

Type-
Sensory neurone to the nasal mucosa.

Function
- Olfaction in the nose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

CN2

  • Name
  • Exit
  • Type + innervation
  • Structure
A

Optic nerve

Exits- Optical canal

Type- Sensory from:
The retina to the visual processing sections in the brain.

Structure:
Optic nerve converges to form the optic chiasma

Chiasma diverges into optic tracts which lead into brain processing centres

  • Primary visual cortex
  • Superior colliculus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

CN3

  • Name
  • Exit
  • Type
A

Oculomotor

Exits- superior orbital fissure

Type

  • Somatic motor
  • General visceral efferent, parasympathetic
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Innervation of CN3

- [6]

A

General somatic motor to extra-ocular muscles

  • Superior Rectus
  • Inferior rectus
  • Medial rectus
  • Inferior oblique

General visceral efferent parasympathetic [via ciliary nerve] to

  • Ciliary body
  • Sphincter pupillae
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

CN4

  • Name
  • Exit
  • Type
A

Trochlear nerve

Exits through superior orbital fissure

Type- Somatic motor to superior oblique

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

CN5

  • Name
  • Branches
  • Type
A

Trigeminal nerve

Branches:

  • V1= Ophthalmic
  • V2= Maxillary
  • V3= Mandibular

Type

  • V1 + 2= sensory
  • V3= Sensory and motor
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Ophthalmic nerve

  • Exit
  • Branches [3]
  • Type
  • Innervation [4]
A

CN V1

Exit- superior orbital fissure

Branches:

  • Lacrimal
  • Nasocillary
  • Frontal

Type
- Sensory

Innervation

  • Skin
  • Mucous membranes
  • Conjunctiva
  • Front of head
  • Front of nose
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Maxillary nerve [2]

  • Exit
  • Branches
  • Type
  • Innervation
A

CN V2
- Exits foramen rotundum

Branches:

  • Infraorbital
  • Zygomatic [ branches into the zygomaticofacial and zygomaticotemporal]

Type;
Sensory

Innervation

  • Dura
  • Nose
  • Upper cheek
  • Lip
  • Teeth
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Mandibular nerve [5]

  • Exit
  • Branches
  • Innervation
A

CN V3
- Exits foramen ovale

Sensory root—->branches

  • Auriculotemporal
  • Buccal
  • Mental
  • Lingual
  • Inferior alveolar

Motor root—-> branches [named after muscle innervated]

  • Temporalis
  • Masseter
  • Mylohyoid
  • Medial and lateral pterygoid

Innervation:
- Sensory —-> lower face, lip, teeth

  • Motor —> Muscles of mastication
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

CN 6

  • Name
  • Exit
  • Type + innervation
A

Abducens nerve
- Exits superior orbital fissure

Motor—> Lateral rectus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

CN 7

  • Name
  • Exit
  • Branches
A

Facial nerve

Exit course:
Internal acoustic meatus—> Facial canal —> Stylomastoid foramen

Branches [6]: To Zanzibar by Motor Car

  • Posterior auricular
  • Temporal
  • Zygomatic
  • Buccal
  • Marginal mandibular
  • Cervical
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Innervation of facial nerve

A

Motor—> Muscles of facial expression

Parasympathetic —> Pterygopalatine

Sensory—> Taste

  • Anterior 2/3 of tongue
  • Travels Via chorda tympani of lingual nerve

General sensory —> skin over external auditory meatus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

CN8

  • Name
  • Exit
  • Branches
  • Type
A

Vestibulocochlear nerve
- Exits internal acoustic meatus

Branches:

  • Vestibular- balance
  • Cochlear- hearing

Type

  • Sensory
  • Somatic afferent from the ear for hearing, motion and equilibrium
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

CN 9

  • Name
  • Exit
A

Glossopharyngeal

- Exits jugular foramen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Innervation of the glossopharyngeal nerve [4]

A

Somatic sensory from
- Oropharynx and posterior third of the tongue

Special [taste] sensory to —> posterior third of the tongue

Motor —> Stylopharyngeus muscle

Visceral motor —-> Parotid gland

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

CN X

  • Name
  • Path to head and thorax
A

Vagus nerve

Path
Medulla—-> Jugular foramen —> Carotid sheath —-> head and thorax

17
Q

General motor and sensory supply of CN10

A

Innervation of muscles:

  • Palatoglossus
  • Muscles of the larynx and pharynx

Sensory:

  • Larynx
  • Dura
18
Q

Special taste innervation of CN10

A

Sensory fibres on epiglottis and pharynx

19
Q

Visceral sensory supply of CN X [7]

A
  • Aortic arch
  • Carotid bodies
  • Bronchi
  • Midgut
  • Foregut
  • Heart
  • Lungs
20
Q

Visceral motor supply of CN X [7]

A

To smooth muscle and glands of

  • Foregut
  • Midgut
  • Thoracic viscera
  • Pharynx
  • Larynx
21
Q

CN XII

  • Name
  • Exit
  • Type + innervation
A

Hypoglossal nerve
- Exits hypoglossal canal

Motor supply to----> Muscles of the tongue [intrinsic and extrinsic}
Extrinsic- 
Geniglossal
Hyoglossal
Styloglossal
22
Q

CN XI

  • Name
  • Exit
  • Type and innervation
A

Accessory nerve
- Exits via jugular foramen

Motor supply to

  • Sternocleidomastoid
  • Trapezius

202: Theme 1, Fundamental neuroscience and the brain (27 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions