1.7 The Meninges and Dural Folds Flashcards
What are the 3 layers of the Meninges?
Superficial to Deep
- Dura Matter
- Arachnoid Matter
- Pia Matter
What fluid circulates in the Sub-Arachnoid Space?
Cerebrospinal Fluid (CSF)
What structures are present in the Sub-Arachnoid Space?
- The Trabeculae (connective tissue, connecting to the Pia Matter)
- Veins
- Arteries
What is the name of the midline vertical sheet of Dura?
The Falx Cerebri
What is the name of the horizontal sheet of Dura?
The Tentorum Cerebelli
Which structures does the Falx Cerebri separate?
The 2 Cerebral Hemispheres
What bony structres does the Falx Cerebri attach to anteriorly?
- The Crista Gali
- The Frontal Sinus Process
- The Ethmoid Sinus Process
What Dural Venous sinus runs within the upper border of the Falx Cerebri?
The Inferior Sagittal Sinus
What Dural Venous sinus runs along the upper border of the Falx Cerebri?
The Superior Sagittal Sinus
Which structures does the Tentorum Cerebelli separate?
- The Lower Occipital lobe (of the Cerebrum)
2. The Cerebellum
What bony structures does the Tentorum Cerebelli attach to anteriorly?
- 2 x Anterior Clinoid Process of the Sphenoid Bone
2. 2 x Posterior Clinoid Process of the Sphenoid Bone
Which Dural Venous Sinus runs along the attachment of the Tenorum Cerebelli?
The Straight Sinus
What is the name of the Dural fold, which separates the Cerebellar Hemispheres?
The Falx Cerebelli
What is the name of the Dural fold, which surrounds the Pituitary Stalk?
The Sella Diaphragm
or Diaphragm Sellae
What is the Arterial supply of the Dura from?
Branches of numerous arteries, including:
- The Internal Carotid Artery
- The External Carotid Artery
- The Vertebral Arteries
