Cranial nerves Flashcards

1
Q

Cranial 1

A

Olefactory

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2
Q

Cranial 2

A

Optic

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3
Q

Cranial 3

A

Occulamotor

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4
Q

Cranial 4

A

Trochlear

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5
Q

Cranial 5

A

Trigeminal
1- opthalmic
2- Maxilla
3- mandibular

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6
Q

Cranial 6

A

Abducens

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7
Q

Cranial 7

A

Facial

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8
Q

Cranial 8

A

Vestibularcochlea

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9
Q

Cranial 9

A

Glossopharyngeal

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10
Q

Cranial 10

A

Vagus

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11
Q

Cranial 11

A

Accessory

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12
Q

Cranial 12

A

Hypoglossal

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13
Q

What is the way to remember cranial nerves?

A

Oh Oh Oh to touch and feel very good velvet, Ah heaven!

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14
Q

Way to remember foramina?

A

Coming out straight for freddie is just happiness

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15
Q

What is the 1st foramina and what nerves run through it?

A

Cribiform plate

Olfactory

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16
Q

2nd foramina and nerves that run through?

A

Optic Canal

Optic nerve

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17
Q

3rd formaina and nerves?

A

Superior Intestinal canal

  • Abducens
  • Trochlear
  • opthalmic
  • occularmoter
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18
Q

4th foramina and nerves?

A

Foreman rotundum

Maxilla

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19
Q

5th foramina and nerves ?

A

Foreman ovale

Mandibular

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20
Q

6th foramina and nerves?

A

Intestinal accoutic meatis

  • Facial
  • Vestibulocochlear
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21
Q

7th foramina and nerves

A

Jugular

  • Accessory
  • Glossophargneal
  • Vegas
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22
Q

8th formaina and nerve

A

Hypoglossal

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23
Q

Way to remember sensory or motor

A

Some say money matter, but my brother says big boobs matter more

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24
Q

Sensory

A

Efferent

  • General or special
  • Somatic or visceral
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25
Q

Motor

A

Afferent

  • General or somatic
  • Somatic or visceral
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26
Q

What is somatic?

A

neurons transmit information from the skin or skeletal muscles

27
Q

What is visceral?

A

internal organs to the central nervous system

28
Q

How many facial nuclei are there?

A

3 each side

29
Q

Nucleus solitaria

A

Sensory for glossopharyneal and vagus

30
Q

Nucleus ambiguous

A

Motor

  • Glossopharyneal
  • Accessory
  • vagus
31
Q

What is the cranial nuclei for hypoglossal?

A

Most inferior

1- motor

32
Q

What are the trigeminal nuclei?

A

Sensory 3 in 1= more lateral

Motor= medial

33
Q

Where do cranial nerves 1 and 2 originate from?

A

The cerebellum

34
Q

Cranial nerves 3 to 12 origin?

A

Brainstem

35
Q

Where does cranial nerve 4 originate from?

A

Midbrain

36
Q

Where does cranial nerve 3 originate from

A

Midbrain-pontine junction

37
Q

Where does cranial nerve 5 originate?

A

Pons

38
Q

What nerves originate from pontine-medulla junction

A

6-8

39
Q

Which cranial nerves originate in the medulla

A

9-12
9-11=posterior to olive
12= anterior to olive

40
Q

Meninegeal layers

A

Dura
arachnoid
pia

41
Q

What is the falx cerebri?

A

It is dura mater layer that descends between the longitudinal fissures- 2 hemispheres

42
Q

Falx cerebelli

A

Projects into posterior cerebellar notch- between cerebrum and cerebellum

43
Q

Tentorium cerebrum

A

Roof of cerebrum

44
Q

Diaghrama sellae

A

Flat piece of dura matter allowing ventral passage of pituitary stalk
Front

45
Q

Two layers of the dura matter

A

Meningeal

Periosteal

46
Q

Vasculature of cerebrum

A
  1. Anterior cerebral arteries- anteriomedial aspect supplied (internal artery )
  2. posterior cerebral arteries- medial and lateral posterior (basilar artery)
  3. middle cerebral arteries- lateral portion of cerebrum (internal artery)

Venous drainage-cerebral veins

47
Q

Function of midbrain

A

Motor movement

eye, auditory and sensory processing

48
Q

Midbrain includes

A

Tectum- superior and inferior colliculi

Tegmentum

49
Q

quadrigeminal brachium

A

Superior quadrigeminal- Superior colliculi to retina

Inferior quadrigeminal- Inferior colliculi to medial geniculate

50
Q

What are the peduncles

A

Superior, middle and inferior cerebellar peduncles

-middle= transverse

51
Q

What is the substantia nigra?

A

Pigmented nucleus that separates the 2 regions of the cerebral peduncles, split into pars retinculata (anterior) and pars compacta (posterior)
Between pons and midbrain

52
Q

Tegmentum

A

Located posterior to substantia nigra, runs in midline with pons

53
Q

Tectum

A

Consists of superior and inferior colliculi

54
Q

Whats the difference in a transverse cross section of inferior and superior colliculi?

A

Inferior- Decussion of superior cerebellar peduncles

Superior- Red nucleus

55
Q

Pons

A

Group of nerves that function as a connection between the cerebellum and cerebrum

56
Q

Landmarks on the posterior surface of the pons

A

Immediately related to the cerebellum

  • medial eminence- Marks the midline of floor plate
  • facial colliculus- Fibres of facial looping
  • stria medulla-4th ventricle bundle
57
Q

Vasculature of the pons

A

Verterbrobasilar

  • pontine arteries
  • inferior cerebellar artery and superior cerebral artery
58
Q

Medulla oblongata

A

Ascending and descending tracts and brainstem nuclei
Function= connections of NS
Olive= swellings of pyramid
Pyramid= swellings between anterior medial fissure and ventrolateral sulcus

59
Q

What can you see in the horizontal section of the brainstem?

A

Medulla oblongata- Inferior olivary nucleus
Pons- Pontine nucleus
Midbrain- Substantia nigra, Red nucleus and cerebral aquaduct

60
Q

Connection between left and right thalamus

A

Interthalamic adhesion

61
Q

Function of the thalamus

A
  1. sensory relays
  2. support for motor systems
  3. mental operation regulation
62
Q

What is the lentiform nucleus

A
Putamen 
Globus pallidus (inhibits movement of thalamus)
63
Q

Internal capsule

A

Runs through this cuadate and lentiform nucelus