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Head And Neck > Meningeal Anatomy, Dural Folds And Dural Venous Sinuses > Flashcards

Meningeal Anatomy, Dural Folds And Dural Venous Sinuses Flashcards

1
Q

What are the layers of the meninges surrounding the brain?

A

Pia mater
Arachnoid mater
Dural mater (meningeal and periosteal layers)

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2
Q

What is the space between the pia mater and arachnoid mater called? What is found within this space?

A

Sub-arachnoid space. It is filled with CSF and cerebral arteries and veins

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3
Q

Which of the meningeal layers follows the brains contours?

A

Pia mater

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4
Q

Which of the meningeal layers can be seen and distinguished with the naked eye?

A

The arachnoid mater and dura mater

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5
Q

What are the contours of the brain known as?

A

Gyri and sulci

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6
Q

What is the dural fold called that is found within in the longitudinal fissure?

A

Falx cerebri

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7
Q

What is the falx cerebri attached to anteriorly?

A

Crista Galli

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8
Q

What is the horizontal dural fold called that acts to separate the middle and posterior fossae?

A

Tentorium cerebelli

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9
Q

What is the space between the tentorium cerebelli that allows space for the middle brain?

A

Tentorial notch

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10
Q

What are the functions of the dural folds?

A

The helps to stabilise the brain by acting as rigid dividers

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11
Q

Where are venous sinuses found?

A

At the area where dural folds are closest to the bone?

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12
Q

What are venous sinuses?

A

Spaces formed by the separation of the two dural layers where venous blood drains

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13
Q

Which veins pass from the sub-arachnoid space into dural venous sinuses?

A

Bridging veins

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14
Q

What are the veins called that travel from the dense connective tissue of the scalp into dural venous sinuses?

A

Emissary veins

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15
Q

What are the venous sinuses found in the falx cerebri?

A

Superior and inferior saggital sinuses

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16
Q

What is the named of the dural venous sinus in the tentorium cerebelli?

A

The transverse sinus

17
Q

What is the name of the dural venous sinus connecting the transverse sinus and the inferior saggital sinus?

A

The straight sinus

18
Q

What is the S-shaped dural venous sinus which drains venous blood from the other sinuses into the internal jugular vein?

A

Sigmoid sinus

19
Q

What is the dural venous sinus on the cranial floor (containing the carotid siphon of ICA and cranial nerves 3,4,5) and the two pairs of other sinuses which exit it?

A

Cavernous sinus and the superior and inferior petrosal sinuses

20
Q

Which foramina located in the middle cranial fossa allows passage of the middle meningeal artery?

A

Foramen spinosum

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