CRANIAL VAULT Flashcards
what are the surface layers of the skull from outside to in?
skin epicranial aponeurosis periosteum skull bone 3 meniges layer -dura mater --periosteal dura --endosteal dura --dura sinuses --falx cerebri --tentorium cerebelli -subdural space -arachnoid mater --arachnoid granulations ---pacchyonion depressions -sub arachnoid space -pia mater cerebral cortex
this meningeal layer is the dense outer fibrous layer supplied by the meningeal layer
dura mater
this is the outer portion of the dura mater that is connected to the bones of the skull?
periosteal dura mater
function as veins to carry venous blood?
dural sinuses
this portion of the dura mater is an extension that separates the two cerebral hemispheres?
falx cerebri
this is the dura mater extension that separates the cerebellum from the inferior portion of the occipital lobe; this prevents the cerebrum from crushing the cerebellum
tentorium cerebelli
this is a space located in the meningeal layer that contains the lymph?
subdural space
this is the spider webby middle layer of the meninges?
arachnoid mater
these are arachnoid extensions through the dura mater that act as a one way valve return of CSF to the superior sagittal suns and eventually to venous circulation?
arachnoid granulations
these are depressions of the internal portion of the superior skull (calvaria) formed by arachnoid granulations?
pacchyonion depressions
this is a space located in the meningeal layer that contains the CSF?
sub arachnoid space
this is a meningeal layer that is 1 cell layer thick lining the surface of the brain and acts in the blood brain barrier?
pia mater
how many cell layers are the lobes of the cerebral cortex, what is the exception? what are the indentations called?
6 layers of cell bodies except the insula
sulci and gyri
the precentral gyrus is located in which lobe? the post central gyrus?
frontal lobe
parietal lobe
what divides the frontal lobe from the parietal lobe?
central sulcus
the precentral gyrus is connected to the post central gyrus by what?
paracentral lobule
what is the pain gate for the head?
substantia gelatinosa
this divides the parietal lobe form the occipital lobe?
parietal-occipital sulcus
this is the division from the temporal lobe from the frontal and occipital lobes?
sylvian fissure
this portion of the lobe is aka the limbic lobe responsible for emotion hidden deeper than the temporal lobe and is 3 cell bodies thick?
insula
this is the portion of the lateral ventricles that separates them?
septum pellucidum
what is the flow of the CSF starting from the choroid plexus?
lateral ventricle inter ventricular foramen of monroe third ventricle cerebral aqueduct of sylvius fourth ventricle -posterior: foramen of magiende -lateral: foramen of luschka -inferior: central canal of the spinal cord subarachnoid space arachnoid granulations *superior sagittal sinus *right drainage
right side of brain CSF drainage leaving the arachnoid granulations?
superior sagittal sinus right transversesinus sigmoid sinus internal jugular v venous return
left side of brain CSF drainage leaving the arachnoid granulations?
inferior sagittal sinus straight sinus left transverse sinus sigmoid sinus internal jugular v venous return