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neuroscience > cranial nerves > Flashcards

cranial nerves Flashcards

1
Q

where does the cranial nerves start and end?

A

telencephalon and medulla

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2
Q

which two cranial nerves are not technically cranial nerves?

A

optic nerve

spinal accessory

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3
Q

which cranial nerves are in the forebrain?

A

olfactory

optic

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4
Q

which cranial nerves are in the midbrain?

A

oculomotor

trochlear

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5
Q

which cranial nerves are in the pons?

A

trigeminal
abducens
facial
auditory

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6
Q

which cranial nerves are in the medulla?

A

glossopharyngeal
vagus
spinal accessory
hypoglossal

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7
Q
  • smell
  • sensory special
  • starts in the nose and runs to telencephalon
  • connection to limbic system
  • develops from a placode
A

olfactory

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8
Q
  • sensory special
  • vision
  • connects the retinal ganglion axons to the brain
A

optic

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9
Q

where does the eye develop from?

A

diencephalon

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10
Q
  • motor (somatic and visceral)
  • one of 3 nerves which innervate the 6 extrinsic muscles of the eye
  • move the eyeball
A

oculomotor

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11
Q

what are the extrinsic muscles of the eye that oculomotor connects with?

A

inferior oblique
medical rectus
inferior rectus
superior rectus

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12
Q
  • innervate parts of the parasympathetic nervous system
  • the ciliary muscles that change the shape of the lens and iris
  • smooth muscle tissue
A

oculomotor visceral

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13
Q
  • somatic motor only
  • innervates the superoblique extrinsic muscle of the eye
  • rotates eyeball downward and outward
A

trochlear

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14
Q
  • somatic sensory and somatic motor
  • first mixed nerve
  • the motor portion innervates the striated muscles of the jaw
  • the sensory portion is somatosensory and carries all temp/pain/touch/pressure input from the skin covering the face, forehead, and top of the head
A

trigeminal

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15
Q
  • somatic motor
  • innervates only the lateral rectus extrinsic muscles of the eye
  • abducts the eyeball laterally and outward
A

abducens

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16
Q
  • primarily somatic motor, but also visceral motor, small somatic sensory and special sense
  • taste
A

facial

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17
Q
  • innervates the striated muscles of the faces used for facial expression
  • includes all the muscles of the face except for eye and jaw muscles
A

somatic motor

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18
Q
  • innervates the tear ducts and 2 salivary glands

- sublingual and submaxillary glands

A

visceral motor

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19
Q
  • innervates a small portion of the skin over the mastoid
A

somatic sensory

20
Q
  • portion of nerve that involves the taste sensations in the anterior 2/3s of tongue
A

special sense

21
Q
  • special sense
  • hearing
  • origin from placode
  • carries sense info from the inner ear and vestibular organs
A

auditory

22
Q
  • general visceral sensory, general ad special visceral motor, and general somatic sensory and special sense
A

glossopharyngeal

23
Q
  • innervates receptors from major blood vessels in the neck
  • helps to monitor the pH, carbon monoxide and BP
  • innervates pain/temp sensations from the upper pharynx, tonsils, eustachian tube and soft palate
A

general visceral sensory glossopharyngeal

24
Q

innervates the parotid gland

A

general visceral motor glossopharyngeal

25
Q

helps elevate the larynx

A

special visceral motor glossopharyngeal

26
Q
  • innervates a small area behind the ear

- which is actually a ring surrounding the skin innervated by nerve VII

A

general somatic sensory glossopharyngeal

27
Q

carries info from the posterior 1/3 of tongue

A

special sense glossopharyngeal

28
Q

I

A

olfactory

29
Q

II

A

optic

30
Q

III

A

oculomotor

31
Q

IV

A

trochlear

32
Q

V

A

trigeminal

33
Q

VI

A

abducens

34
Q

VII

A

facial

35
Q

VIII

A

auditory

36
Q

IX

A

glossopharygeal

37
Q

X

A

vagus

38
Q

visceral motor and visceral sensory

A

vagus

39
Q
  • main parasympathetic innervation to the internal organ

- heart, trachea, bronchi, esophagus, stomach intestines

A

general visceral motor – vagus

40
Q
  • innervates the larynx, pharynx, and upper part of esophagus
  • upper part of soft palate, except for tensor palatini
  • cricothyroid
A

special visceral motor – vagus

41
Q
  • carries general skin sensation from pharynx, larynx, thorax, abdomen, heart, bronchi and esophagus to CNS
A

general visceral sensory – vagus

42
Q

carries sensations from pharynx and epiglottis

A

special visceral sensory – vagus

43
Q
  • general visceral motor
  • innervates two muscles of the neck
  • ends in spinal cord
A

spinal accessory

44
Q

which two neck muscles does the spinal accessory innervate?

A
  • trapezius

- sternocleidomastoid

45
Q

front of the neck that tilts the head forward

A

sternocleidomastoid

46
Q

sides of the neck that lift the shoulders up and down

A

trapezius

47
Q
  • general somatic motor

- innervates tongue muscles

A

hypoglossal

neuroscience (16 decks)

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