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Term 3: Head and Neck > Skull/Cranial Cavity > Flashcards

Skull/Cranial Cavity Flashcards

1
Q

What two parts is the cranium divided into?

A
  • Neurocranium (bony casing of the brain)

- Visocranium (facial bones)

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2
Q

What are the two subdivisions of the Neurocranium?

A
  • Calvaria (superior)

- Cranial base (inferior)

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3
Q

What is the name of CN I? What is its function?

A

Olfactory

-Smell

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4
Q

What is the name of CN II? What is its function?

A

Optic

-Vision

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5
Q

What is the name of CN III? What is its function?

A

Oculomotor

-Eye movement

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6
Q

What is the name of CN IV? What is its function?

A

Trochlear

-Eye Movement

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7
Q

What is the name of CN V? What is its function?

A

Trigeminal

  • Mandible movement
  • Face sensory
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8
Q

What is the name of CN VI? What is its function?

A

Abducens

-Eye movement

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9
Q

What is the name of CN VII? What is its function?

A

Facial

  • face movement
  • anterior 2/3 of tongue taste/sensation
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10
Q

What is the name of CN VIII? What is its function?

A

Vestibulocochlear

-Hearing/balance

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11
Q

What is the name of CN IX? What is its function?

A

Glossopharyngeal

  • pharynx movement
  • Posterior 1/3 of tongue and pharynx Taste/sensation
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12
Q

What is the name of CN X? What is its function?

A

Vagus

-Motor & sensory: pharynx, larynx, esophagus, cardiac etc

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13
Q

What is the name of CN XI? What is its function?

A

Accessory

-Head and shoulders movement

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14
Q

What is the name of CN XII? What is its function?

A

Hypoglossal

-tongue movement

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15
Q

What are the two layers of the Dura mater?

A
  • periosteal

- internal meningeal

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16
Q

Which cranial nerves contain presynaptic parasympathetic axons?

A

III

VII

IX

X

17
Q

Which layer of the Dura continues along the spinal cord?

A

Internal meningeal

18
Q

Describe the pathway of CN XI in the skull.

A
  • enters from spinal cord via foramen magnum

- leaves skull with CN IX & X via the Jugular Foramen

19
Q

Through which dural infolding does the infundibular stalk of the hypothalamus pass?

A

Diaphragma sellae

20
Q

Is an extradural hemorrhage arterial or venous in origin?

A

Arterial

21
Q

Is a Subdural hemorrhage arterial or venous in origin?

A

venous

22
Q

Is a subarachnoid hemorrhage arterial or venous in origin?

A

Arterial

23
Q

Which nerves exit the skull through the Superior orbital fissure?

A

III

IV

V-1

VI

24
Q

Which nerves exit the skull through the foramen rotundum?

A

V2

25
Q

Which nerves exit the skull through the foramen ovale?

A

V3

26
Q

Which nerves exit the skull cavity through the internal auditory meatus?

A

VII

VIII

27
Q

Which nerves exit the skull through the jugular foramen?

A

IX

X

XI

28
Q

What passes through the foramen spinosum?

A

Middle meningeal artery

29
Q

Through what opening does CNXII exit the cranial cavity?

A

Hypoglossal Canal

30
Q

What structure separates the occipital lobe from the cerebellum?

A

Tentorium Cerebelli

31
Q

What structure separates the cerebrum into two hemispheres?

A

Falx Cerebri

32
Q

What structure divides the cerebellum into right and left halves?

A

-Falx cerebelli

33
Q

What structure divides the hypothalamus from and the pituitary?

A

-Diaphragma sellae

34
Q

Is a subdural hemorrhage usually arterial or venous in origin?

A

-Venous

35
Q

Is an epiduralhemorrhage usually arterial or venous in origin?

A

Arterial

36
Q

Is a subarachnoidhemorrhage usually arterial or venous in origin?

A

Arterial

aneurysm

Term 3: Head and Neck (12 decks)

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