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3rd Year > Mod 5 Anatomy > Flashcards

Mod 5 Anatomy Flashcards

1
Q

What makes up the Leptomeninx?

A

pia mater and arachnoid are considered together as a functional unit and contraposed to pachymeninx

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2
Q

What is the pachymeninx?

A

Dura mater, also known as the pachymeninx

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3
Q

What is in the subarachnoid space?

A

CSF

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4
Q

Which layer of the Dura adhers to the internal surface of the Cranium?

A

External Periosteal Layer

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5
Q

What is the Falx cerebri ??

A

Vertical fold of dura that begins anteriorly at the crista galli
- winds around the corpus callosum to the falcotentorial junction on the superior aspect of the tentorium cerebelli

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6
Q

Is falx cerebri the same as dura mater?

A

The falx cerebri is a meningeal projection of dura in the brain. It is a sickle-shaped fold of dura mater located at the midline between the two cerebral hemispheres.

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7
Q

What is the tentorium cerebelli?

A

dura mater that separates the occipital lobes and cereberal hemispheres from the cerebellum

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8
Q

The falx cerebelli is ?? and seperates?

A

The falx cerebelli is a small fold of the meningeal cranial dura mater. It separates the right and left cerebellar hemispheres

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9
Q

The falx cerebri separates ? and Houses?

A

The falx cerebri separates the cerebral hemispheres and houses the dural sinuses, into which the blood and cerebrospinal fluid drain

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10
Q

What lies in the longitudinal cerebral fissure?

A

Falx Cerebri

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11
Q

The Falx Cerebri attaches?

A

In the Median plane, to the internal surface of the Calvaria from the frontal bone, and ethmoid bone, to internal occipital protuberance

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12
Q

The Falx Cerebri continues as?

A

Tentorium Cerebelli

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13
Q

What is the largest and second largest dural folds?

A

Largest- Falx Cerebri, Second- Tentorium Cerebelli

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14
Q

What attaches to the Tentorium Cerebelli ?

A

Falx Cerebri

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15
Q

Most of the blood from the brain drains into?

A

Internal Jugular vein

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16
Q

What is the Superior Sagittal sinus?

A

Begins at the Crista Galli, ends internal occipital protub

Lays in the Falx Cerebrum, Along the Sagittal groove, Drains anterior Cerebral Hemisphere

17
Q

The confluence of sinus’s in the head is a meeting of?

A

Superior Sagittal
Straight sinus
Occipital sinus
Transverse sinus

18
Q

The Superior Sagittal sinus receives the ______ veins and communiucates on each side through?

A

Superior Cerebral veins
Lateral venous Lacunae

19
Q

What are Arachnoid Granulations?

A

Arachnoid sacs that protrude through menengial layer of dura into dural venous sinuses

20
Q

Inferior Sagittal sinus runs? and ends ?

A

Runs in the inferior concave free boarder of Falx Cerebri ends in straight sinus

21
Q

The straight sinus is formed by?

A

union of Inf. Sagittal Sinus and Great Cerebral vein

22
Q

Blood received by the confluence of sinuses is drained?

A

By transverse sinus

23
Q

What nerves pass through the cavernous sinus ? and Mjr Artery?

A

Oculomotor nerve (CN III)
Trochlear nerve (CN IV)
Ophthalmic nerve (V1), maxillary nerve (V2)
Abducens nerve (CN VI)

Internal Carotid Artery

24
Q

What are the tributaries of the Cavernous sinus?

A

Ophthalmic vein (Sup/ Inf)
Superficial middle cerebral vein
Inferior cerebral veins
Sphenoparietal sinus
Middle meningeal vein.

25
Q

The cavernous sinuses empty into the ______, and ultimately, into the _______.

A

The cavernous sinuses empty into the superior and inferior petrosal sinuses, and ultimately, into the internal jugular vein.

26
Q

The left and right cavernous sinuses are connected in the midline by the___________ They travel through the s____of the sphenoid bone.

A

Anterior and posterior intercavernous sinuses. They travel through the sella turcica of the sphenoid bone.

27
Q

What veins connect the dural venous sinus’s with the outside veins of the Cranium?

A

Emissary Veins

28
Q

Middle Meningeal artery arises from? and Passes where?

A

Arises from Maxillay artery, passes through infratemporal fossa

29
Q

The Middle Meningeal Artery supplies?

A

Dura Mater

30
Q

Where does the Middle Meningeal Artery enter the middle cranial fossa?

A

Foramen spinosum

31
Q

What are the branches of the Middle Meningeal Artery?

A

Ant/ Post Division with a frontal and parietal branch of the middle Meningeal Artery

32
Q

The Meningeal veins Leave the Cranial cavity through the? and Drain into?

A

Foramen spinosum and drain into Pterygoid venous plexus

33
Q

What nerves supply the Dura Mater?

A

(Trigeminal Nerve CNV)
V1- Ethmoidal Branch
V2 -Menengial branches
V3- Mandibular

34
Q

Is the Trigeminal Nerve Sensory or Motor?

A

Mandibular- V3 is the only branch which contains both sensory and motor components:the

Opthalmic (V1) and Maxillary (V2) nerves contain only sensory fibres

35
Q

What does the Tentorial nerve supply sensory info from?

A

Fall Cerebri, and Tentorium Cerebelli

36
Q
A

3rd Year (26 decks)

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