Lab 2 Structures Flashcards
(21 cards)
falx cerebri
- dural reflection that provides support between right/left cerebral hemispheres
- runs along sup/post aspects of skull
- contains superior sagittal sinus, inferior sagittal sinus, straight sinus
tentorium cerebelli
- dural reflection positioned like a roof over posterior fossa
- supports cerebral hemispheres from below (lies above cerebellum)
- posterior attachment → groove for transverse sinus
- tentorial notch
tentorial notch
opening in tentorium cerebelli that allows for posterior fossa brainstem to freely pass through dural reflection into posterior cranial fossa
falx cerebelli
dural reflection that lies between/supports smaller cerebellar hemispheres
superior sagittal sinus → ?
superior sagittal sinus → right transverse sinus
inferior sagittal sinus → ?
inferior sagittal sinus → straight sinus
straight sinus → ?
straight sinus → left transverse sinus
transverse sinuses → ?
path from either transverse sinus → sigmoid sinus
sigmoid sinuses → ?
sigmoid sinus → jugular foramen (internal jugular vein)
cavernous sinus → ?
cavernous sinus → jugular foramen
where is the ventricular system located?
within cerebral hemispheres and brainstem
what does the ventricular system do?
- floats/bathes brain
- provides nutrients to brain
what flows through the ventricular system?
cerebrospinal fluid (CSF)
what flows through the sinus system?
deoxygenated blood
lateral ventricles associated brain region
cerebral hemispheres
third ventricle associated brain region
- thalamus
- hypothalamus
cerebral aqueduct associated brain region
midbrain
fourth ventricle associated brain region
- pons
- cerebellum
- medulla
subdural hematoma
- between dura mater and arachnoid mater (subdural space)
- most common hematoma because space has lots of structures that can sheer/leak blood
epidural hematoma
- most often caused by middle meningeal artery lesion
- takes awhile for Sx to show since artery is small
subarachnoid hematoma
“the worst head of my life”
