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DHBS 301 > Cranial Cavity > Flashcards

Cranial Cavity Flashcards

1
Q

Scalp layers

A
  • Skin
  • Connective Tissue
  • Aponeurosis
  • Loose connective tissue
  • Pericardium
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2
Q

Scalp innervation, skin sensation

A
  • Trigeminal nerve
  • Ventral and dorsal rami of the cervical spinal nerves
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3
Q

Arterial supply to the face and scalp

A
  • External carotid artery
  • Internal carotid artery
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4
Q

Emissary veins

A

Pass through small openings in the skull to connect veins of the scalp with the dural venous system

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5
Q

Do emissary veins have arterial counterparts?

A

No

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6
Q

Periosteal

A

Always stays adherent to bone

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7
Q

Inner meningeal layer

A

Projects into cranial cavity, forms a dural fold

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8
Q

The dural venous sinuses takes blood to the…

A

Internal jugular vein

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9
Q

Potential space

A

Not really a space but bleeding could pool there

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10
Q

Epidural space

A

Potential space, bleeding could separate the dura from the skull

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11
Q

The middle meningeal vessels go through what foramen?

A

Foramen spinosum in the sphenoid bone

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12
Q

What is the pterion? Injury of this can cause?

A
  • Thinner part of the skull and is vulnerable to fracture
  • Can result in rupture of middle meningeal artery
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13
Q

Layers of the meningeal spaces

A
  • Epidural space
  • Dura mater
  • Subdural space
  • Arachnoid
  • Subarachnoid space
  • Pia mater
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14
Q

Sensation from the dura mater

A

Sevreal branches of the trigeminal nerve and branches of the cervical spinal nerves

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15
Q

Epidural hematoma

A

Accumulation of blood between the dura and skill

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16
Q

What causes a epidural hematoma?

A

Rupture of the middle meningeal artery

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17
Q

Where is the fall cerebra located?

A
  • Midline, vertical
  • Between left and right central hemispheres
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18
Q

Where is the tentoruum cerebelli located?

A
  • Horizontal
  • Between cerebrum and cerebellum
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19
Q

What divides the anial vault into supratentorial and infratentorial components?

A

Tentoruum cerebelli

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20
Q

Sella turica holds what structure?

A

Pituitary gland

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21
Q

Brain herniation

A

Shift of brain tissue from its normal position into an adjacent space

22
Q

Brain herniations occurs because of…

A

Occurs as result of increased intracranial pressure due to mass effec

23
Q

CSF fluid comes from the…

A

Subarachnoid space

24
Q

Dural venous sinuses function

A

Venous channels found between the layers of dura matter that receive venous blood from veins of the brain and CSF

25
Q

Where do cerebral veins drain into?

A

Dural venous sinuses

26
Q

Bridging veins

A

Deliver blood from the brain to the dural venous sinuses

27
Q

Rupture of bridging veins causes…

A

Subdural hematoma

28
Q

Subdural hematoma

A

Accumulation of blood between the dura and arachnoid

29
Q

Where do the sigmoid and inferior petrosal sinuses drain into? Through which foramen?

A
  • Drain into the internal jugular vein
  • Jugular foramen
30
Q

Maxillary infection can spread to the…

A

Cavernous sinus

31
Q

Structures within the cavernous sinus include…

A
  • Internal carotid artery
  • CN III
  • CN IV
  • CN V1
  • CN V2
  • CN VI
32
Q

CSF is continuously produced by the…

A

Choroid plexus in ventricles

33
Q

How is CSF fluid delivered to the venous circulation?

A

Through the arachnoid granulations and villi, reabsorbed here

34
Q

Vertebral artery

A
  • Branch of the subclavian artery
  • Posterior circulation
35
Q

Internal carotid artery

A
  • Branch of the common carotid artery
  • Anterior circulation
36
Q

Where is the circle of Willis located?

A

Base of brain

37
Q

The circle of willis provides…

A

Collateral circualation

38
Q

What does the internal carotid artery branch into?

A
  • Middle cerebral artery
  • Anterior cerebral arter
39
Q

Where does the anterior cerebral artery course through?

A

Goes in between cerebral hemispheres

40
Q

What does the vertebral artery branch into?

A
  • Superior cerebellar artery
  • Pontine arteries
  • Anterior inferior cerebellar arteries
  • Posterior inferior cerebellar artery
  • Posterior cerebral artery
  • Basilar artery
41
Q

The anterior communicating artery connects…

A

Connects left and right cerebral arteries

42
Q

The posterior communicating artery connects…

A

Internal carotid artery and posterior cerebral artery

43
Q

What arteries does the circle of Willis contain?

A
  • Internal carotid arteries
  • Anterior cerebral arteries
  • Anterior communicating artery
  • Posterior cerebral arteries
  • Posterior communicating artery
44
Q

Subarachnoid hemorrhage

A
  • Blood within subarachnoid space
  • Lumbar puncture can diagnose
45
Q

What artery courses within subarachnoid space?

A

Cerebral arteries

46
Q

Epidural hematoma source

A

Source is the middle meningeal artery

47
Q

Subdural hematoma source

A

Source is bridging veins

48
Q

Subarachnoid hematoma source

A

Source is the cerebral vasculature

49
Q

The tenorium cerebelli attaches to the…

A

Lesser wing of the sphenoid

50
Q

What attaches to the crista galli?

A

Falx cerebri

51
Q

Where does the tenorium cerebelli attach?

A

Lesser wing of the sphenoid bone

52
Q

What foramen does the middle meningeal artery go through?

A

Foramen spinosum

DHBS 301 (21 decks)

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