Flashcards in W19-L10: Meninges Deck (14):
Function of the meninges
Prevent rotation of the brain
lies in midline between two cerebral hemispheres (in sagittal plane), attaches to crita galli ant. and post. to internal aspect
of external occipital protuberance
post. cranial fossa separates cerebellum and occipital lobe, attaches to marigins of post cranial fossa
separates hemispheres of cerebellum beneath tentorium cerebelli
roofs over pit where pituitary gland
Venous sinuses of Dura mater receive blood from where?
blood from scalp (emissary vein) and spongey bone (diploic vein)
Venous sinuses of Dura mater
endothelial lined spaces that exist between two layers of dura
where ISS meets great cerebral vein of galen (where falx cerebri meets tentorium)
either side of the body of the sphenoid in which some structures
after confluence of sinuses and runs in the root of tentorium cerebelli
At the petrous bone (edge of middle cranial fossa) sinus leaves tentorium and runs down into jugular foramen
Middle Meningeal Artery is a branch of the which artery?
branch of the maxillary artery
Where does the middle meningeal artery enter the skull?
middle meningeal artery enters by foramen spinosum, grooves the internal
surface of the pterion (divides into ant. and post components)