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head and neck ~ anatomy > Dural Venous Sinuses > Flashcards

Dural Venous Sinuses Flashcards

1
Q

Dural Venous Sinuses present in Meningeal Layer of Dura

A

Inferior Sagittal Sinus

Straight Sinus

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2
Q

Tentorium Cerebelli is

A

Partition b/w Cerebrum and Cerebellum

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3
Q

Sinuses present in Tentorium Cerebelli

A

Straight Sinus

Transverse Sinus

Superior Petrosal Sinus

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4
Q

Dural Fold Present b/w 2 Cerebrum

A

Falx Cerebri

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5
Q

Sinuses present in Falx Cerebri

A

Superior and Inferior Sagittal Sinuses

Straight Sinus

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6
Q

Dural Fold present b/w 2 Cerebellum

A

Falx Cerebelli

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7
Q

Occipital Sinus present in the

A

Falx Cerebelli

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8
Q

What is Diaphragma Sellae

A

Dural fold present over Pituitary Gland

And forms Roof of Sella Turcica

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9
Q

Unpaired Dural Venous Sinuses

A

Superior sagittal sinus

Inferior sagittal sinus

Straight sinus

Basillar venous plexus

Post. and Ant. Intercavernous sinus

Occipital sinus

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10
Q

Superficial Sagittal Sinus Drain into

A

Right Transverse Sinus

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11
Q

Inferior Sagittal Sinus will continue as

A

Straight Sinus

Straight Sinus + Galen Vein → Left Transverse Sinus

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12
Q

Each Transverse Sinus will Continue as

A

Sigmoid Sinus → Internal Jugular Vein

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13
Q

How Lateral Sinus is made

A

Transverse Sinus + Sigmoid Sius

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14
Q

Confluence of Sinus is

A

Meeting point of 4 sinuses

Transverse Sinus

Occipital Sinus

Superior Sagittal Sinus

Straight Sinus

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15
Q

Location of Cavernous Sinus

A

On either side of Body of Sphenoid

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16
Q

Medially to Cavernous Sinus

A

Sphenoid Sinus

Pituitary Gland

17
Q

What is Trans Sphenoidal Hypophysectomy?

A

Removal of Pituitary Gland via Sphenoidal Sinus Approach

Only skilled Surgeons can do this surgery

18
Q

Structures passing through Cavernous Sinus

A

ICA

VI CN ~ inferolaterally to ICA

19
Q

Structures passing through Lateral wall of cavernous sinus

A

Occulomotor Nerve

Trochlear Nerve

Ophthalmic Nerve

20
Q

Tributaries tht draining into Cavernous Sinus

A

M ~ middle meningeal vein

I ~ inferior cerebral vein

SS ~ sphenoparietal sinus

R ~ central vein of Retina

O ~ Ophthalmic vein

S ~ Superior ophthalmic vein

I ~ Inferior ophthalmic vein

SMC ~ Superficial Middle Cerebral Vein

21
Q

1st Tributary of Internal Jugular Vein

A

Inferior Petrosal Sinus

22
Q

Structures passing through Jugular Foramen

A

Inferior Petrosal Sinus

CN - IX, X, XI

23
Q

Cavernous Sinus Draining into Transverse Sinus via which outflow channel

A

Superior Petrosal Sinus

24
Q

Cavernous Sinus Draining Into Inferior Jugular Vein via which outflow channel

A

Inferior Petrosal Sinus

25
Q

Facial Vein Communicating to the cavernous sinus most commonly through

A

Superior ophthalmic vein

26
Q

Septic emboli from Facial vein reach Cavernous most commonly through

A

Superior ophthalmic vein

Another route is via Deep Facial Vein

27
Q

Only vein to acts as Tributary and communicating channel to cavernous sinus is

A

Superior ophthalmic vein

28
Q

What is Vein of Labbe

A

It is the Inferior Anastomosing Vein

Which connects Superficial Middle Cerebral Vein to Transverse Sinus

29
Q

Vein Which connects Superficial Middle Cerebral Vein to Superior Sagittal Sinus

A

Vein of Trolard ~ Superior Anastomosing Vein

30
Q

Arterial Supply to Posterior Cranial Fossa

A

Vertebral Artery (from 1st part of subclavian artery)

Occipital Artery

Meningeal Branch of Ascending Pharyngeal Artery (supply middle and post. cranial fossa)

31
Q

Arterial Supply to Middle Cranial Fossa

A

Accessory Middle Meningeal Artery

Middle Meningeal Artery

Meningeal Branch of Cavernous part of ICA

Meningeal Branch of Ascending Pharyngeal Artery

32
Q

Arterial Supply to Anterior Cranial Fossa

A

[Anterior Ethmoidal Artery
Posterior Ethmoidal Artery] ~ Ophthalmic Artery

[Middle Meningeal Artery] ~ Maxillary artery

Meningeal branch of ICA

33
Q

Nerve supply to Middle Cranial Fossa

A

Mandibular Nerve

Maxillary Nerve

34
Q

Nerve supply to Anterior Cranial Fossa

A

Ophthalmic Nerve

Maxillary Nerve

Mandibular Nerve

35
Q

Nerve Supply to Posterior Cranial fossa

A

CN {7, 9, 10, 12}

C- 1, 2, 3, 4

head and neck ~ anatomy (16 decks)

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