Dural Venous Sinus Flashcards
Which of the following correctly describes the tissue type of the cranial meninges?
A. Dense Irregular CT
B. Dense Regular CT
C. Loose Regular CT
D. Reticular CT
Dense Regular CT
Which of the following layers directly attaches to the periosteum and is secured by sutures?
A. Arachnoid Mater
B. Pia Mater
C. Periosteal Layer of Dura Mater
D. Meningeal Layer of Dura Mater
Periosteal Layer of Dura Mater
The Dura Mater is classified into two layers, the Periosteal and Meningeal Layers. These two layers are fused, and in locations where they are not the spaces are called?
Dural Venous Sinus
What are the name of the veins that drain from the scalp to the dural venous sinus?
A. Angular V.
B. Emissary V.
C. Bridging V.
D. Sagital Sinus V.
Emissary V.
What are the name of the veins that drains the venous blood from the cerebral cortex to the dural venous sinus?
A. Angular V.
B. Emissary V.
C. Bridging V.
D. Sagital Sinus V.
Bridging V.
Arachnoid Mater is deep to the Dura mater, and composed of trabecullae made of collagen and elastic fibers. Between the dura mater and arachnoid mater is a potential space called Subdural space. This Subdural space can only be seen during what two scenarios?
In general it is only seen when something goes wrong
- Bleeding from Bridging veins
- Post-lumbar puncture
Which of the following major vessels can be seen deep to the arachnoid mater in the Sub-arachnoid space?
A. Bridging Veins
B. Emissary Veins
C. Cerebral Arteries
D. None of the above
Cerebral Arteries
What artery is the main blood supplier to the brain that gives off cerebral arteries?
A. Internal Carotid A.
B. External Carotid A.
C. Common Carotid A.
D. Facial A.
Internal Carotid
What are the names of the 4 Cranial Dura Septa that are formed from the meningeal layer of dura mater?
- Falx Cerebri
- Falx Cerebelli
- Tentorium Cerebelli
- Diaphragma Sellae
Found within the Dural Septa are the dural venous sinuses. What are their names?
- Superior and Inferior Saggital Sinus
- Straight Sinus
- Sigmoid Sinus
- Transverse Sinus
What is the main arterial supply to the meninges?
A. Internal Carotid A.
B. Cerebral As.
C. Middle Meningeal A.
D. Facial A.
Middle Meningeal A.
Note: the middle meningeal A. gives off 2 branches: Parietal and Frontal A.
Which of the following Ns. supplies the anterior half of the purple highlighted region?
A. Anterior Meningeal Branches of Ethmoidal N. (V1)
B. Meningeal Branch of Mandibular N. (V3)
C. Meningeal Branch of Maxillary N. (V2)
D. Tentorial N. (Recurrent Branch of Opthalmic N.) (V1)
Anterior Meningeal Branches of Ethmoidal N. (V1)
Which of the following Ns. supplies the blue highlighted region?
A. Anterior Meningeal Branches of Ethmoidal N. (V1)
B. Meningeal Branch of Mandibular N. (V3)
C. Meningeal Branch of Maxillary N. (V2)
D. Tentorial N. (Recurrent Branch of Opthalmic N.) (V1)
Meningeal Branch of Maxillary N. (V2)
Which of the following Ns. supplies the red highlighted region?
A. Anterior Meningeal Branches of Ethmoidal N. (V1)
B. Meningeal Branch of Mandibular N. (V3)
C. Meningeal Branch of Maxillary N. (V2)
D. Tentorial N. (Recurrent Branch of Opthalmic N.) (V1)
Meningeal Branch of Mandibular N. (V3)
Which of the following Ns. supplies the posterior half of the purple highlighted region?
A. Anterior Meningeal Branches of Ethmoidal N. (V1)
B. Meningeal Branch of Mandibular N. (V3)
C. Meningeal Branch of Maxillary N. (V2)
D. Tentorial N. (Recurrent Branch of Opthalmic N.) (V1)
Tentorial N. (Recurrent Branch of Opthalmic N.) (V1)
What is the name of the abnormality below?
What causes this?
What layer/pace does it occur between?
Epidural Hematoma
Rupture of Middle Menigeal A.
Skull bone and Dura mater: this is why there’s a lens shape, as the dura mater is sutured in certain locations to the periosteum
What is the name of the abnormality below?
What causes this?
What layer/pace does it occur between?
Subdural Hematoma
Rupture of Bridging Veins
Subdural Space
What is the name of the abnormality below?
What causes this?
What layer/pace does it occur between?
Subarachnoid Hemorrage
Cerebral As. get an aneurysm and rupture
Subarachnoid Space
What 3 veins are connected to the Cavernous Sinus and are clinically significant for how infections at the front of the face can spread backwards into the cavernous sinus?
Superior and Inferior Opthalmic Vs.
Facial V.
Which of the following go from the Cavernous Sinus to the sigmoid sinus and Basilar plexus to sigmoid sinus?
A. Superior and Inferior Saggital Sinus
B. Superior and Inferior Petrosal Sinus
C. Transverse Sinus
D. Inferior Petrosal Sinus only
Superior and Inferior Petrosal Sinus
What are the contents of the cavernous sinus (7) as they include neurovasculature and a menigeal layer?
Dura Mater
Internal Carotid A.
CN: 3, 4, 6, V1, V2
The Internal Carotid A. has a very tortuous path within the cavernous sinus that can be described as?
A. Superior and Anteriolateral
B. Inferior and Anterolateral
C. Superior and Anteromedial
D. Superior and Anterolateral
Superior and Anteromedial
The Internal Carotid A. has 4 different parts. Rupture or damage to which 2 parts could affect the Abducent N?
A. Cervical
B. Petrous
C. Cavernous
D. Cerebral
Petrous
Cavernous
The Internal Carotid A. has 4 different parts. What two parts are wraped by the Carotid sympathetic plexus?
A. Cervical
B. Petrous
C. Cavernous
D. Cerebral
Cervical
Petrous
T/F: Infection in the Cavernous Sinus can destroy any of the CN that traverse through it, and classically the destruction is associated with Periorbital Destruction, CN VI (lateral gaze palsy)
True
Cerebrospinal fluid is a clear, colorless liquid that circulates the ventricles and the sub-arachnoid space. CSF also performs what 3 functions?
Boyancy
Protection
Environmental Stability
CSF is similar to blood plasma but instead has which of the following attributes?
A. Higher K
B. Lower Ca
C. Lower Na and H
D. Lower K
Lower K
What are the tiny structures found on the Arachnoid villus that project into the veins and allow CSF to leave the subarachnoid space and into dural venous sinus?
Arachnoid Granulations
T/F: Enlargement of the ventricles in the Brain is called Hydrocephalus
True
