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Anatomy 2 > Nervous System > Flashcards

Nervous System Flashcards

1
Q

What are the 2 anatomical divisions of the nervous system?

A
  1. CNS (brain and spinal cord)

2. PNS (cranial and spinal nerves and sympathetic trunks)

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2
Q

What are the 2 functional divisions of the nervous system?

A
  1. Somatic (voluntary)

2. Autonomic (involuntary)

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3
Q

Where do cranial nerves arise?

A

Nuclei found in the brainstem

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4
Q

Name CN I

A

Olfactory

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5
Q

Name CN II

A

Optic

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6
Q

Name CN III and describe where it emerges

A

Oculomotor - Emerges on anterior surface of the brain

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7
Q

Name CN IV and describe where it emerges

A

Trochlear - Leaves posterior surface of brainstem but emerges from midbrain

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8
Q

Name CN V and describe where it emerges

A

Trigeminal - Leaves anterior aspect of lateral side of pons

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9
Q

Name CN VI

A

Abducent

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10
Q

Name CN VII

A

Facial

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11
Q

Name CN VIII

A

Vestibulocochlear

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12
Q

Where do CN VI, CN VII and CN VIII emerge?

A

Groove between lower boarder of pons and the medulla oblongata

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13
Q

Name CN IX

A

Glossopharyngeal

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14
Q

Name CN X

A

Vagus

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15
Q

Name CN XI

A

Accessory

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16
Q

Where do CN IX, CN X and cranial part of CN XI emerge?

A

Anterolateral surface of medulla between the olive and inferior cerebellar peduncle

17
Q

Where does the spinal part of CN XI emerge?

A

Spinal cord and enters the skull through the foramen magnum

18
Q

Name CN XII and describe where it emerges

A

Hypoglossal - Emerges from the anterior surface of medulla oblongata between pyramid and olive

19
Q

How does CN I leave the skull?

A

Cribriform plate

20
Q

How does CN II leave the skull?

A

Optic canal

21
Q

How does CN V₁ leave the skull?

A

Superior orbital fissure

22
Q

How does CN V₂ leave the skull?

A

Foramen rotundum

23
Q

How does CN V₃ leave the skull?

A

Foramen ovale

24
Q

How does CN III leave the skull?

A

Superior orbital fissure

25
Q

How does CN IV leave the skull?

A

Superior orbital fissure

26
Q

How does CN VI leave the skull?

A

Superior orbital fissure

27
Q

What leaves the skull by the foramen spinosum?

A

Middle meningeal vessels

28
Q

How does CN VII leave the skull?

A

Internal acoustic meatus

29
Q

How does CN VIII leave the skull?

A

Internal acoustic meatus

30
Q

How does CN IX leave the skull?

A

Jugular foramen

31
Q

How does CN X leave the skull?

A

Jugular foramen

32
Q

How does CN XI leave the skull?

A

Jugular foramen

33
Q

How does CN XII leave the skull?

A

Foramen magnus

Anatomy 2 (24 decks)

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