Dural Venous Sinuses

Question 1

What are Dural Venous Sinuses?

Answer 1

Wide venous channels between the Periosteal and Meningeal Dural Layers

Question 2

Which Dural Venous Sinuses do not lie in the Periosteal and Meningeal Dura Layers?

Answer 2

Inferior Sagittal Sinus
Straight Sinus

These sinuses lie in the dura

Question 3

Dural Venous Sinuses are lined by …

Answer 3

endothelium

Question 4

Dural Venous Sinuses are supported by …

Answer 4

2 dural layers

Question 5

Characteristics of Dural Venous Sinuses

Answer 5

No Muscle Tissue in their walls
No Valves

Question 6

How do Dural Venous Sinuses communicate with veins outside the skull?

Answer 6

Valveless Emissary Veins

Question 7

What areas of the body do the Dural Venous Sinuses drain?

Answer 7

Bones of Skull
Meninges
CSF
Brain

Question 8

Dural Venous Sinuses drain into …

Answer 8

Inferior Jugular Vein

Question 9

Categories of Dural Venous Sinuses

Answer 9

Single
Paired

Question 10

Names of Single Dural Sinuses

Answer 10

Superior Sagittal Sinus
Inferior Sagittal Sinus
Straight Sinus
Occipital Sinus
Basillar Venous Plexus
Intercavernous Sinuses

Question 11

Single Dural Sinus: Superior Sagittal Sinus
Begins near …

Answer 11

Crista Galli

Question 12

Single Dural Sinus: Superior Sagittal Sinus
Pathway

Answer 12

Runs backwards in Superior Border of Falx Cerebri

Question 13

Single Dural Sinus: Superior Sagittal Sinus
Termination

Answer 13

Forms Right Transverse Sinus near Internal Occipital Protuberance

Question 14

Single Dural Sinus: Superior Sagittal Sinus
Cross-sectional view of sinus is …

Answer 14

triangular

Question 15

Single Dural Sinus: Superior Sagittal Sinus
Communicates with …

Answer 15

Arachnoid Granulations

Question 16

Single Dural Sinus: Superior Sagittal Sinus
What are Arachnoid Granulations?

Answer 16

Protrusions of Arachnoid through Dura

Question 17

Single Dural Sinus: Superior Sagittal Sinus
Tributeries

Answer 17

Superior Cerebral Veins

Question 18

Single Dural Sinus: Inferior Sagittal Sinus
Location

Answer 18

Lower border of Falx Cerebri

Question 19

Single Dural Sinus: Inferior Sagittal Sinus
Joins the …

Answer 19

Great Cerebral Vein
Straight Sinus

Question 20

Single Dural Sinus: Straight Sinus
Lies in the junction between the ____ and ____

Answer 20

__Falx Cerebri__
__Tentorium Cerebelli__

Question 21

Single Dural Sinus: Straight Sinus
What does the Straight Sinus become?

Answer 21

Deviates leftwards forming Left Transverse Sinus

Question 22

Single Dural Sinus: Occipital Sinus
Location

Answer 22

Attached border of Falx Cerebelli

Question 23

Single Dural Sinus: Occipital Sinus
Joins to the …

Answer 23

Transverse Sinus above
Sigmoid Sinus below

Question 24

Single Dural Sinus: Basilar Venous Plexus
Location

Answer 24

Lies on the Clivus between 2 Dural Layers

Question 25

**Single Dural Sinus: Basilar Venous Plexus** Connects ...

Answer 25

2 Inferior Petrosal Venous Sinuses

Question 26

**Single Dural Sinus: Basilar Venous Plexus** Receives veins from ...

Answer 26

pons and medulla

Question 27

**Single Dural Sinus: Basilar Venous Plexus** What happens in case of Thrombosis?

Answer 27

Death

Question 28

**Single Dural Sinus: Intercavernous Sinuses** What are the groups?

Answer 28

Anterior Posterior

Question 29

**Single Dural Sinus: Intercavernous Sinuses** Location

Answer 29

Anterior and Posterior Borders of Diaphragma Sellae

Question 30

Names of Paired Dural Sinuses

Answer 30

Sphenoparietal Sinuses Cavernous Sinuses Superior Petrosal Sinus Inferior Petrosal Sinus Transverse Sinuses Sigmoid Sinuses

Question 31

**Paired Dural Sinuses: Sphenoparietal Sinuses** Location

Answer 31

Posterior Border of Lesser Wing of Sphenoid

Question 32

**Paired Dural Sinuses: Sphenoparietal Sinuses** Ends by joining the ...

Answer 32

Cavernous Sinus

Question 33

**Paired Dural Sinuses: Cavernous Sinuses** Location

Answer 33

Side of body of Sphenoid Bone

Question 34

**Paired Dural Sinuses: Cavernous Sinuses** Structures transverse to cavernous sinus

Answer 34

Inferomedial Wall Lateral Wall

Question 35

**Paired Dural Sinuses: Cavernous Sinuses** Structures of Inferomedial Wall

Answer 35

Internal Carotid Artery Abducent Nerve

Question 36

**Paired Dural Sinuses: Cavernous Sinuses** Structures of Lateral Wall

Answer 36

**Up to Down**: Oculomotor Nerve Trochlear Nerve Opthalmic and maxillary divisions of trigeminal nerve

Question 37

**Paired Dural Sinuses: Cavernous Sinuses** Anterior Tributaries

Answer 37

**Superior Opthalmic Vein**: Connects Cavernous Sinus to Facial Vein **Sphenoparietal Venous Sinus**

Question 38

**Paired Dural Sinuses: Cavernous Sinuses** Posterior Tributaries

Answer 38

**Superior Petrosal Sinus**: To Transverse Sinus **Inferior Petrosal Sinus**: To IJV

Question 39

**Paired Dural Sinuses: Cavernous Sinuses** Medial Connections

Answer 39

Intercavernous Sinuses

Question 40

**Paired Dural Sinuses: Cavernous Sinuses** Face Infection

Answer 40

Transmitted through Superior Ophthalmic Vein Leads to thrombosis of Cavernous Sinus

Question 41

**Paired Dural Sinuses: Superior Petrosal Sinus** Location

Answer 41

Attached border of Tentorium Cerebelli along superior border of Petrous Temporal Bone

Question 42

**Paired Dural Sinuses: Superior Petrosal Sinus** Drains blood from the ____ to the ____

Answer 42

__Cavernous Sinus__ __Transverse Sinus__

Question 43

**Paired Dural Sinuses: Inferior Petrosal Sinus** Location

Answer 43

Between Petrous Temporal and Basilar Occipital bones

Question 44

**Paired Dural Sinuses: Inferior Petrosal Sinus** Function

Answer 44

Drains blood from Cavernous Sinus to Internal Jugular Vein

Question 45

**Paired Dural Sinuses: Transverse Sinus** Location

Answer 45

Transverse Sulcus (between the 2 layers of the attached margin of Tentorium Cerebelli)

Question 46

**Paired Dural SInuses: Transverse Sinus** Right sinus is ____ because it is continuous with the ____

Answer 46

__larger__ __superior sagittal sinus__

Question 47

**Paired Dural Sinuses: Transverse Sinus** Left sinus is continuous with the ...

Answer 47

straight sinus

Question 48

**Paired Dural Sinuses: Sigmoid Sinuses** Shape

Answer 48

S-shaped

Question 49

**Paired Dural Sinuses: Sigmoid Sinuses** Continuation of ...

Answer 49

transverse sinus

Question 50

**Paired Dural Sinuses: Sigmoid Sinuses** Descends close to the ...

Answer 50

mastoid air sinus

Question 51

**Paired Dural Sinuses: Sigmoid Sinuses** Infections of Sigmoid Sinuses

Answer 51

Otitis Media Mastoiditis

Question 52

**Paired Dural Sinuses: Sigmoid Sinuses** Infections causes ...

Answer 52

sigmoid sinus thrombosis

Question 53

Which sinuses pass through the Jugular Venous Foramen?

Answer 53

Inferior Petrosal Sinus Sigmoid Sinus