Anatomy: The Meninges and CSF Circulation Flashcards

1
Q

Describe the circulation of CSF

A
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2
Q

What is indicated by the arrow?

A

Third ventricle

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3
Q

What is indicated by the arrow?

A

Left lateral ventricle

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4
Q

Where is the choroid plexus found in the adult brain?

A

3rd, 4th, and lateral ventricles

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5
Q

What is indicated by the arrow?

A

Fourth ventricle

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6
Q

What is indicated by the arrow?

A

Right lateral ventricle

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7
Q

What is the function of the choroid plexus?

A

Specialised secreting cells that produce CSF

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8
Q

What is indicated by the arrow?

A

Dura mater

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9
Q

Name the structures which connects fourth ventricles to subarachnoid space

A

Foramen of Magendie and foramina of Luschka

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10
Q

The cavity of the _____ _____ gives rise to the adult brain’s ventricles and the spinal cord’s central canal

A

Neural canal

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11
Q

Name the structure which connects third ventricle to fourth

A

Cerebral aqueduct (of Sylvius)

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12
Q

Which cranial nerve gives sensory innervation to the dura mater?

A

CN V

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13
Q

What is indicated by the arrow?

A

Superior sagittal sinus

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14
Q

Name the contents of the subarachnoid space

A

Circulating CSF and blood vessels

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15
Q

The subarachnoid space can be accessed via _____ _______ at L3/4 or L4/5 disc levels to obtain a sample of CSF

A

Lumbar puncture

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16
Q

What is the arachnoid mater?

A

Middle layer of the meninges; forms the arachnoid granulations

17
Q

What is the meninges?

A

Protective coverings of brain and spinal cord

18
Q

The subarachnoid space ends inferiorly at vertebral leve ___

A

L2

19
Q

What is the pia mater?

A

Layer of the meninges that adheres to the brain (and vessels and nerves entering or leaving the brain)

20
Q

What is indicated by the arrows?

A

Subarachnoid space

21
Q

What is indicated by the arrow?

A

Cerebral aqueduct

22
Q

What is the dura mater?

A

Layer of the meninges which encloses dural venous sinuses

23
Q

The subarachnoid space communicates with another series of CSF-filled spaces within the brain - the _______

A

Ventricles

24
Q

What is indicated by the arrow?

A

Pia mater

25
Q

What is indicated by the arrow?

A

Arachnoid mater

26
Q

Name the structure which connects lateral ventricles to third ventricle

A

Intraventricular foramina (of Monroe)

27
Q

What is the embryological origin of the choroid plexus?

A

Develops from the walls of the ventricles