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2nd Year - Neuroanatomy > 1.6 The Venous Drainage of the Brain > Flashcards

1.6 The Venous Drainage of the Brain Flashcards

1
Q

What do the series of Veins, draining the Brain, drain into?

A

Dural Venous Sinuses

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2
Q

Where are the Dural Venous Sinuses located?

A

Between the Periosteum and the Cranial Dura

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3
Q

What are the 2 groups the Cerebral Veins can be divided into?

A
  1. Superficial

2. Deep

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4
Q

Which of the Deep group of Veins can be found on Wet Specimens?

A

The Great Cerebral Vein (of Galen)

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5
Q

What are the names of the Sinuses in the Brain?

A
  1. Superior Sagittal Sinus
  2. Inferior Sagittal Sinus
  3. Cavernous Sinus
  4. Superior Petrosal Sinus
  5. Inferior Petrosal Sinus
  6. Straight Sinus
  7. Transverse Sinus
  8. Sigmoid Sinus
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6
Q

What are the names of the Deep Veins in the Brain

A
  1. Superior Ophthalmic Vein
  2. Middle Cerebral Vein
  3. Great Cerebral Vein
  4. Vein of Trolard
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7
Q

What does the Vein of Trolard connect?

A
  1. The Superior Sagittal Sinus

2. The Inferior Sagittal Sinus

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8
Q

What does the Inferior Sagittal Sinus go on to form?

A

The Straight Sinus

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9
Q

What is the name of the area where the Superior Sagittal Sinus and the Straight Sinus meet?

A

The Confluence of the Sinuses

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10
Q

What arises from the Confluence of the Sinuses?

A

The 2 Transverse Sinuses

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11
Q

What do the Transverse Sinuses go onto form?

A

The Sigmoid Sinus

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12
Q

What Veins feeds into the Cavernous Sinus?

A
  1. The Superior Ophthalmic Vein

2. The Middle Cerebral Veins

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13
Q

What connects the Cavernous Sinus to the Sigmoid Sinus?

A

The Superior and Inferior Petrosal Sinuses

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14
Q

What forms the Great Cerebral Vein?

A

A union of:

  1. The Thalamostriate Vein
  2. The Choroid Vein
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15
Q

Where do the Veins which form the Great Cerebral Vein converge?

A

At the Intraventricular Foramina

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16
Q

Where does the Great Cerebral Vein drain into?

A

The Straight Sinus

17
Q

Where is the Straight Sinus located?

A

In the Midline of the Tentorum Cerebelli

18
Q

What does the Sigmoid Sinus go on to form?

A

The Internal Jugular Vein

19
Q

Through which Foramen does the Internal Jugular Vein leave the Cranium?

A

The Jugular Foramen

20
Q

Other than the Internal Jugular Vein, are there any other connections between the Extracranial Veins and the Intracranial Venous Sinuses?
And if so, what are they?

A

Yes:

  1. The Superior Ophthalmic Vein drains into the Cavernous Sinus
  2. Emissary Veins are small veins connecting Cranial Venous Sinuses to the Diploe of the Skull, and these are continuous with Veins of the Scalp
  3. The Basilar Sinus (which connects the 2 inferior Petrosal Sinuses) is also connected to the Internal Vertebral Sinus
21
Q

Where is the Cavernous Sinus located?

A

Directly posterior to the Superior Orbital Fissure

22
Q

What Structures of the Skull are closely related to the Cavernous Sinus?

A
  1. Cranial Nerves III, IV, V1, V2, VI,
  2. The Internal Carotid Artery
  3. The Ophthalmic Vein
  4. The Middle Cerebral Vein
  5. The Sphenoid Air Sinuses
  6. The Sella Turcica
23
Q

What is a Cavernous Sinus Thrombosis?

A

A clinical condition due to a spread of infection via Emissary Veins from the Nose, Sinuses, Ears and Teeth.

24
Q

What can a Cavernous Sinus Thrombosis cause?

A
  1. This can cause Bulging Eyes due to an increase in the pressure behind the Eye due to the build up of blood in the Sinus
  2. This can also cause Loss of Vision due to the Paralysis of the Nerves coursing through the it.
25
Q

What is the Distribution Pattern of the Spinal Cord Veins similar to?

A

The Spinal Arteries

26
Q

Which orientation are the Anterior and Posterior Spinal Veins in?

A

The Longitudinal Axis

27
Q

Do the Anterior and Posterior Spinal Veins communicate freely with each other?

A

Yes

28
Q

What do the Anterior and Posterior Spinal Veins join to form?

A

The Internal Vertebral (Epidural) Venous Plexus

29
Q

Where does the Internal Vertebral (Epidural) Venous Plexus lie?

A

In the Epidural Space

30
Q

Where does the Internal Vertebral (Epidural) Venous Plexus travel?

A

Superiorly, within the Vertebral Canal, through the Foramen Magnum

31
Q

What does the Internal Vertebral (Epidural) Venous Plexus communicate with?

A
  1. The Dural Sinuses and Veins within the Skull

2. The External Vertebral Venous Plexus

32
Q

Where can the External Vertebral Venous Plexus be found?

A

On the External Surface of the Vertebrae

2nd Year - Neuroanatomy (13 decks)

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