Meninges and Dural fold Flashcards
What fluid circulates in the subarachnoid space?
CSF
What other structures are present in the subarachnoid space?
Major blood vessels – i.e the spinal arteries & cisterns (Enlarged pockets of CSF created by the separation of the arachnoid mater from the pia mater)
Which structures does the falx cerebri separate?
Left and Right Cerebral hemispheres
To what bony structures does the falx cerebri attach anteriorly?
Crista Galli
Which dural venous sinus runs within the upper border of the falx cerebri?
Superior Sagittal Sinus
Which dural venous sinus runs along the lower border of the falx cerebri?
Inferior Sagittal sinus
What structures lie on either side of the tentorium cerebelli?
Occipital Lobes superiorly and Cerebellum inferiorly.
To what bony points does the anterior edge of the tentorium cerebelli attach to?
Superior borders of the petrous part of the temporal bone.
Which dural venous sinus runs along the attachment of the falx cerebri to the tentorium?
Straight Sinus
What is the dural fold that separates the two cerebellar hemispheres called?
Falx Cerebelli
What is the fold of dura that surrounds the pituitary stalk called?
Diaphragma Sellae
What is the arterial supply of the dura mater from?
Branches of numerous arteries including the Internal carotid artery, branches of the External Carotid Artery and vertebral arteries
What does the middle meningeal artery do?
Specific branch of the maxillary artery that supplies the dura mater
Through which foramen in the skull does it enter the cranial cavity?
Foramen spinosum
Which artery is the maxillary artery a terminal branch of and within which glandular structure is it give off
Branch of the External Carotid Artery. Given off posterior to the mandibular neck & transverses the Parotid Gland
