Meninges and Dural Folds Flashcards
What fluid circulates in the subarachnoid space?
Cerebrospinal Fluid (CSF)
What other structures are present in the subarachnoid space?
Trabeculae
What are the 3 layers of the Meninges?
- Dura Matter
- Arachnoid Matter
- Pia Matter
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?
Falx cerebri
What is the name of the horizontal sheet of dura?
Tentorum cerebelli
Which structures does the Falx Cerebri separate?
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?
Superior sagittal sinus
What dural venous sinus runs within the lower border of the Falx Cerebri?
Inferior sagittal sinuse
Which structures does the Tentorum Cerebelli separate?
The lower occipital lobe (of the cerebrum) and the cerebellum
What bony structures does the Tentorum Cerebelli attach to anteriorly?
Anterior and posterior clines process of the sphenoid bone
Which dural venous sinus runs along the attachment of the falx cerebri to the tenorum cerebelli?
The straight sinus
What is the fold of dura that surrounds the pituitary stalk?
Sellar diaphragm
What is the arterial supply of the dura from?
Branches of numerous arteries, including:
- Internal Carotid Artery
- External Carotid Artery
- Vertebral Arteries
