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Neuroendocrinology > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

What are the cranial nerves?

A

Olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, vestibulochochlear, glossopharyngeal, vagus, spinal accessory, hypoglossal. “Oh once one takes the anatomy final very good vacations are heavenly”

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2
Q

What modalities do the cranial nerves have?

A

Somatic motor, branchial motor, visceral motor, visceral sensory, general sensory, special sensory

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3
Q

What are the branchial arches and their associated cranial nerves?

A

First (mandibular) arch = trigeminal n
Second (hyoid) arch = facial n
Third arch = glossopharyngeal n
Fourth and sixth = superior laryngeal branch of vagus and recurrent laryngeal branch of vagus

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4
Q

If a muscle has the word “tensor” in it’s name, what nerve innervates it?

A

Trigeminal n

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5
Q

What is the only postganglionic parasympathetic nerve?

A

Deep petrosal n

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6
Q

How do postganglionic sympathetic fibers get to the structures that they innervate?

A

By traveling on vessels that go to those structures

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7
Q

All sympathetic fibers are….?

A

Postganglionic

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8
Q

What four ganglia in the head do preganglionic parasympathetic fibers synapse at?

A

Cilliary, pterygopalatine, otic, and submandibular

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9
Q

Preganglionic parasympathetics are carried by which cranial nerves?

A

III, VII, IX, X

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10
Q

How do postganglionic parasympathetic fibers get to the structures that they innervate?

A

“Piggy back” on branch of trigeminal n

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11
Q

What type of nerve is the olfactory nerve?

A

Special sensory

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12
Q

What type of nerve is the optic nerve?

A

Special sensory

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13
Q

What nerves go to the ocular muscles?

A

CN III, CN IV, CN VI

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14
Q

What type of nerve is the oculomotor nerve?

A

Somatic motor and visceral motor

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15
Q

What type of nerve is the trochlear nerve?

A

Somatic motor

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16
Q

What does the trochlear nerve do?

A

Superior oblique muscle of the eye

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17
Q

What type of nerve is the abducens nerve?

A

Somatic motor

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18
Q

What does the abducens nerve do?

A

Lateral rectus muscle of the eye (ABducts eye)

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19
Q

How does oculomotor n vs trochlear/abducens n move the eye?

A

Oculomotor - up and in

Trochlear/abducens - down and out

20
Q

What type of nerve is the trigeminal nerve?

A

Branchial motor and general sensory

21
Q

What are the divisions of the trigeminal n?

A

Ophthalmic (V1), maxillary (V2), and Mandibular (V3)

22
Q

What is another name for trigeminal neuralgia?

A

Tic douloureux

23
Q

What branches arise from the ophthalmic division (V1)?

A

Lacrimal, frontal, nasociliary, meningeal branch

24
Q

What branches arise from the maxillary division (V2)?

A

Zygomatic, infraorbital, superior alveolar, palatine, meningeal

25
Q

What branches arise from the mandibular division (V3)?

A

Buccal, lingual, inferior alveolar, auriculotemporal, meningeal

26
Q

What type of nerve is facial nerve?

A

Branchial motor, visceral motor, general sense, special sense

27
Q

What type of nerve is the vestibulocochlear nerve?

A

Special sensory

28
Q

What type of nerve is the glossopharyngeal nerve?

A

Branchial motor, visceral motor, visceral sensory, general sensory, special sensory

29
Q

What type of nerve is the vagus nerve?

A

Branchial motor, visceral motor, visceral sensory, general sensory

30
Q

What type of nerve is the spinal accessory nerve?

A

Branchial motor

31
Q

What type of nerve is the hypoglossal nerve?

A

Somatic motor

32
Q

What innervates the thyrohyoid?

A

N to thyrohyoid (C1) that travels down with hypoglossal n

33
Q

What foramen does CN I go through?

A

Cribriform plate

34
Q

What foramen does CN II go through?

A

Optic canal

35
Q

What foramen does CN III go through?

A

Superior orbital fissure

36
Q

What foramen does CN IV go through?

A

Superior orbital fissure

37
Q

What foramen does V1 go through?

A

Superior orbital fissure

38
Q

What foramen does CN VI go through?

A

Superior orbital fissure

39
Q

What foramen does V2 go through?

A

Foramen rotundum

40
Q

What foramen does V3 go through?

A

Foramen ovale

41
Q

What foramen does CN VII go through?

A

Internal acoustic meatus

42
Q

What foramen does CN VIII go through?

A

Internal acoustic meatus

43
Q

What foramen does CN IX go through?

A

Jugular foramen

44
Q

What foramen does CN X go through?

A

Jugular foramen

45
Q

What foramen does CN XI go through?

A

Jugular foramen

46
Q

What foramen does CN XII go through?

A

Hypoglossal canal

47
Q

What CN innervates carotid body and carotid sinus?

A

CN IX (glossopharyngeal)

Neuroendocrinology (16 decks)

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