Meninges/Venous Sinuses Flashcards
(23 cards)
Location to palpate carotid pulse
upper border of thyroid cartilage
C-shaped turn of internal carotid artery
carotid siphon
Location at which internal carotid artery enters the scull
first through the carotid canal and then through the foramen lacerum
Location at which vertebral artery enters skull
foramen magnum
sickle shaped dural reflection between cerebral hemispheres
falx cerebri
Attachments of falx cerebri
anterior to crista galli of ethmoid bone; posteriorly blends into tentorium cerebelli
Small dural reflection between cerebellar hemispheres along posterior wall of posterior cranial fossa
falx cerebelli
Dural reflection forming roof of posterior cranial fossa
tentorium cerebelli
Circular dural fold over sella turcica, has opening for stalk of pituitary
diaphragma sella
Opening for brainstem in dural reflections
tentorial notch
Venous sinus in upper border of falx cerebri
superior sagittal sinus
How does the superior sagittal sinus recieve blood
From superior cerebral veins via bridging veins
Venous sinus in lower (free) border of falx cerebri
inferior sagittal sinus
Venous sinus at junction of falx cerebri and tentorium. Formed by joining of Great Cerebral vein and Inferior Sagittal sinus
Straight sinus
Venous sinus in lateral fixed part of tentorium
Transverse sinuses
S-shaped continuation of transverse sinuses; ends in jugular foramen and form internal jugular vein
sigmoid sinuses
Venous sinus in falx cerebelli
occipital sinus
Venous sinuses in middle cranial fossa; on side of the body of the sphenoid bone
Cavernous sinuses
On petrous part of temporal bone. Superior drains to transverse sinus. Inferior drains to internal jugular vein.
Superior and inferior petrosal sinuses
Bleed of internal carotid artery inside cavernous sinus
Carotid-Cavernous Fistula
Courses outside dura and supplies calvarium
Middle Meningeal Artery
Source of blood in subdural hematoma
bridging vein or sinus
Source of blood in epidural hematoma
arterial
