Functions, Layers, Production Flashcards
3rd major body fluid
csf
csf function:
Supply nutrients to the _
nervous system
csf function:
Remove metabolic waste in the _
brain
csf function:
Produce a mechanical barrier to cushion the brain & spinal cord against _
trauma
Lines/covers the brain and spinal cord
meninges
dura mater is also known as
TOUGH MOTHER
Outermost layer; directly lines the skull and vertebral canal
dura mater
Spider-like appearance (filamentous) Inner membrane
ARACHNOID MATER
filaments in arachnoid mater are called
trabeculae
pia mater is also known as
TENDER MOTHER
Innermost layer, directly lines the brain and spinal cord
pia mater
where csf flow
subarachnoid space
located between AM & PM
subarachnoid space
an ultrafiltrate of plasma
csf
it filters the plasma and synthesize the production of csf
choroid plexus
Composed of tight junctions of endothelial cells
choroid plexus
choroid plexus is composed of tight junctions of _ which make up the _
endothelial cells; BBB
rate of production of choroid plexus
20mL/hour
(500 mL/hour: 0.3-0.4mL/minute)
choroid plexus has the same rate production to
arachnoid villi/granulations
prevents passage of molecules that can harm the brain
blood brain barrier
regulates CSF production by reabsorbing circulating CSF back to the peripheral circulation
arachnoid villi/granulations
arachnoid villi/granulations regulates CSF production by reabsorbing circulating CSF back to the _
peripheral circulation
