Week 5 - Meninges, CSF, Arterio-Venous Brain Circulation Flashcards
The _____ and three ______ surround and protect the brain
cranium
cranial meninges
From the most exterior to most interior, list the cranial meninges
Dura mater
arachnoid mater
pia mater
The outer layer of the dura mater is known as the cranial ______
periosteum
Cisterns are _____ in the dura mater near acupoints ______
gaps
UB 10, GB 20
Dural sinuses are ______
large venous channels in between two dural layers
Veins of the brain return blood into the ______
dural sinuses
Injury of the meningeal arteries could cause acute ______
epidural hemorrhage
What are the extensions of the dura mater that separate parts of the brain?
falx cerebri - separates cerebral hemispheres
falx cerebelli - separates cerebellar hemispheres
tentorium cerebelli - separates cerebrum from cerebellum
The acrachnoid villus/granulation does what?
absorbs CSF and empties it into the dural sinuses
Veins of the brain are located in ______
subdural space
Arteries of the brain are located in ______
pia mater
The pia mater contains which type of glial cell?
astrocytes
CSF is produced by ______ through ependymal cell layer of the _________
plasma filtration
ventricular choroid plexus
Choroid plexus is situated within ________
both lateral and 3rd ventricles
The lateral CSF ventricles are separated by ______
septum pellucidum
The third ventricle is located ________ and receives CSF from the lateral ventricles via _______
between two thalami
interventricular foramena
In the Circle of Willis, two ____ arteries climb via inter-vertebral foramena toward the brain, uniting on the frontal surface of the _____ and forming the ______ artery
vertebral
pons
basilar artery
In the Circle of Willis, the basilar artery gives rise to two _____ arteries, supplying the ______ lobe and partially, the ______
posterior cerebral
occipital
cerebellum
In the Circle of Willis, the two internal ______ arteries enter the brain surface on each side, and they each give off ________ artery and ________ artery
carotid
middle cerebral
anterior cerebral
The ________ connects the two anterior cerebral arteries
anterior communicating artery
The _____ connects the basilar artery with internal carotid artery
posterior communicating artery
The bridging veins of the brain are situated and might bleed within the _______ space
Subdural
The Leningrad arteries, which are the most superficially located arterial blood vessels might bleed into the ____ space
Epidural
Which CN’s and arteries pass through the cavernous sinus?
CN III, IV, V (V1, V2), VI
internal carotid arteries
The sequence of venous flow from the superior & inferior saggital sinus is __________
-> straight sinus -> confluence of sinuses -> R/L transverse sinus -> sigmoid sinus -> jugular veins -> R atrium of HT
This artery is made by merging of two vertebral arteries, and is situated as climbing over the pons _______
Basilar artery
Both of these arteries originate from sub-clavian arteries of the brachio-cephalic trunk
Vertebral and common carotid arteries
This pair of arteries provides an arterial circulation to the occipital lobe of the brain cortex and the cerebellum
Posterior cerebral arteries
This pair of arteries climbs to the side of the Circle of Willis via Cavernous sinuses on each side
Internal carotid arteries
This pair of arteries supplies the lateral side of the cerebrum, and responsible for the arterial blood delivery to the brain parts, responsible for the upper trunk and upper extremities
Middle cerebral arteries
This pair of arteries supplies the oxygenated blood to the top of the brain, which is responsible for the lower trunk and lower extremities
Anterior cerebral arteries
The major venous sinus of the brain is the __________
superior sagittal sinus
The cavernous sinus houses the ________ and _______ nerve group w/in the dural cave of the _____
internal carotid artery
oculomotor
sinus
