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Anatomy Endterm > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

Cranial nerves are … that innervate muscles or glands, carry impulses from sensory receptors, or have a combination of motor and sensory fibers

A

bundles of sensory or motor fibers

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2
Q

Cranial nerves are bundles of sensory or motor fibers that …., carry impulses from sensory receptors, or have a combination of motor and sensory fibers

A

innervate muscles or glands

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3
Q

Cranial nerves are bundles of sensory or motor fibers that innervate muscles or glands, ..

A

carry impulses from sensory receptors, or have a combination of motor and sensory fibers

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4
Q

How many pairs of cranial nerves are there?

A

12

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5
Q

How are the cranial nerves numbered?

A

numbered I-XII, from rostral to caudal

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6
Q

What do the names of the cranial nerves reflect?

A

reflect their general distribution or function.

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7
Q

Each cranial nerve has…

A

central connections (nuclei of origin) within the brain and has peripheral connections.

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8
Q

Cranial nerves emerge through …. in the cranium and are covered by tubular sheaths derived from the cranial meninges.

A

foramina or fissures

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9
Q

Cranial nerves emerge through foramina or fissures in the _____ and are covered by tubular sheaths derived from the cranial meninges.

A

cranium

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10
Q

Cranial nerves emerge through foramina or fissures in the cranium and are covered by …

A

tubular sheaths derived from the cranial meninges.

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11
Q

Which foramina does CN I pass thru?

A

Cribriform foramina

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12
Q

What does CN II pass thru?

A

Optic canal

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13
Q

What passes thru superior orbital fissure?

A

CN III , IV, V1, VI

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14
Q

What does CN V2 pass thru?

A

Foramen rotundum

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15
Q

What does CN V3 pass thru?

A

Foramen ovale

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16
Q

What passes thru the internal acoustic meatus?

A

CN VII, VIII

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17
Q

What passes thru the jugular foramen?

A

CN IX X XI

18
Q

What does CN XII pass thru?

A

Hypoglossal canal

19
Q

CNI aka

A

Olfactory nerve

20
Q

CN II aka

A

Optic nerve

21
Q

CN III aka

A

Oculomotor nerve

22
Q

CN IV aka

A

Trochlear nerve

23
Q

CN V1 aka

A

Ophthalmic nerve

24
Q

CN VI aka

A

Abducent nerve

25
Q

CN V2 aka

A

Maxillary nerve

26
Q

CN V3 aka

A

Mandibular nerve

27
Q

CN VII aka

A

Facial nerve

28
Q

CN VIII aka

A

Vestibulocochlear nerve

29
Q

CN IX aka

A

Glossopharyngeal nerve

30
Q

CN X aka

A

Vagus nerve

31
Q

CN XI aka

A

Spinal accesory nerve

32
Q

CN XII aka

A

Hypoglossal nerve

33
Q

FUNCTIONAL COMPONENTS OF A CRANIAL NERVE

A 
general somatic efferent
general visceral efferent 
general somatic afferent
general visceral afferent
Fibers transmitting unique sensation
34
Q

general somatic efferent

A

Motor efferent fibers innervating voluntary muscles

35
Q

general visceral efferent

A

Motor efferent innervating involuntary smooth muscles or gland

36
Q

general somatic afferent

A

Sensory afferent fibers transmitting general sensation from skin and mucous membranes

37
Q

general visceral afferent

A

Sensory afferent fibers conveying sensation from the viscera

38
Q

Sensory afferent fibers conveying sensation from the viscera e.g ….

A

carotid body, pharynx, larynx, trachea, lungs, heart, and gastrointestinal tract

39
Q

Fibers transmitting unique sensation such as …

A

taste, smell, vision, hearing and balance.

40
Q

OLFACTORY (CN I) function

A

Special sensory

41
Q

The cell bodies of olfactory receptor neurons are located in

A

Olfactory organ

42
Q

The olfactory nerves pass through …

A

tiny foramina in the cribriform plate of the ethmoid bone and enter the olfactory bulb

Anatomy Endterm (4 decks)

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