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Human Anatomy 2 > Cranial Nerves (3) > Flashcards

Cranial Nerves (3) Flashcards

1
Q

What is the upper motor neuron tract that supplies cranial nerves?

A

Corticobrainstem

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2
Q

What type of function is the corticobrainstem?

A

Only motor

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3
Q

Where on the homunculus is the face represented?

A

Lateral

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4
Q

What is the common function of cranial nerves 3,7,9,10?

A

Autonomic function

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5
Q

What are the cranial nerves associated with the eye structures?

A

Cranial nerve 4- superior oblique

Cranial nerve 6- Lateral rectus

Cranial nerve 3- inferior oblique, medial rectus, superior rectus, inferior rectus

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6
Q

What are the main functions of cranial nerves 3,4,6?

A

Motor to the extraocular muscles

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7
Q

What are the cranial nerves responsible for assisting with chewing and swallowing?

A

5,7,9,10,12

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8
Q

What does cranial nerve 5 do?

A

Muscles of mastication

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9
Q

What does cranial nerve 7 do?

A

Salivation (sublingual and submandibular glands)

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10
Q

What does cranial nerve 9 do?

A

Swallowing (parotid gland)

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11
Q

What does cranial nerve 10 do?

A

Swallowing

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12
Q

What does cranial nerve 12 do?

A

Tongue

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13
Q

What are the functions of the tongue?

A

Taste

Speech

Pain

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14
Q

What are the 3 divisions of cranial nerve 5 on the face?

A

Ophthalmic (pain)

Maxillary (light touch)

Mandibular (temp)

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15
Q

What structures go through the carotid triangle?

A

Carotid artery and vagus nerve

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16
Q

What cranial nerves emerge from the midbrain?

A

1,2,3 and 4

17
Q

What cranial nerve emerges from the pons?

A

5

18
Q

What cranial nerves emerge from the pontomedullary junction?

A

6,7 and 8

19
Q

What spinal nerves emerge from the medulla?

A

9,10 and 12

20
Q

What is the sensory of cranial nerve 5?

A

Somatosensation

21
Q

What is the sensory of cranial nerves 7 and 9?

A

Special

22
Q

What is the sensory of cranial nerve 10?

A

Somatosensation/special

23
Q

Which cranial nerves are autonomic?

A

3,7,9, and 10

24
Q

What is the function of cranial nerve 3?

A

Innervates superior rectus, inferior rectus, medial rectus, inferior oblique, and levator palpebrae

25
Q

What is the parasympathetic function of cranial nerve 3?

A

Pupil constriction and lens accomodation

26
Q

What is the function of cranial nerve 4?

A

Innervates superior oblique

27
Q

What is the function of cranial nerve 5?

A

Somatosensation to face, mouth, part of tongue, teeth, cornea

Muscles of mastication

28
Q

What is the function of cranial nerve 6?

A

Innervates lateral rectus

29
Q

What is the function of cranial nerve 7?

A

Motor to muscles of facial expressions, closes eyes

taste for anterior 2/3 of tongue

Tears and salvation

30
Q

What is the function of cranial nerve 9?

A

Taste to posterior 1/3 of tongue

Motor to 1 muscle for swallowing

Somatosensation from posterior tongue, pharynx, and middle ear

Visceral afferent from carotid body and sinus

31
Q

What is the function of cranial nerve 10?

A

Motor to muscles of swallowing and speech

Somatosensation to part of ear and pharynx

Regulates visceral function and carries visceral afferent information

32
Q

What is the function of cranial nerve 11?

A

Motor to SCM and upper traps

33
Q

What is the function of cranial nerve 12?

A

Motor to muscles of tongue

34
Q

What is the special sense in cranial nerve 1?

A

Smell

35
Q

What is the special sense in cranial nerve 2?

A

Vision

36
Q

What is the special sense in cranial nerve 7?

A

Taste on anterior 2/3 of tongue

37
Q

What is the special sense in cranial nerve 8?

A

Vestibular sensation from semicircular canals and otholith organ (hearing)

38
Q

What is the special sense in cranial nerve 9?

A

Taste on posterior 1/3 of tongue

39
Q

What is the special sense in cranial nerve 10?

A

Small part in taste

Human Anatomy 2 (20 decks)

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