Csf 1 Flashcards
It is a major fluid of the body that circulates between the arachnoid and pia mater, specifically in the subarachnoid space6
CSF
CSF circulates betweem what part of the meninges?
The arachnoid and pia mater, specifically in the subarachnoid space
Surround the brain and spinal cord and act as a cushion to protect them from trauma
Pia mater
Also called as “dural sinus”
Dura mater
Where arachnoid villus is located
Dura mater
Sungular term for meninges
Meninx
It is the outermost membrane, beneath the skull, and contains sinuses
Dura mater
From the latin word for “hard mother”
Dura mater
The filamentous inner membrane (spiderweb-like)
Arachnoid
It contains the subarachnoid space
Arachnoid
The middle membrane
Arachnoid
Lines the surface of the brain and spinal cord
Pia mater
Latin for “gentle mother”
Pia mater
Adheres to the surface of neural tissue
Pia mater
T or F
CSF is entirely an ultrafiltrate of plasma
F
Structures of the CNS that are lined by epithelial cells are called:
Ependymal cells
Structures lined by epithelial cells called ependymal cells include:
Cerebral ventricle and the neural canal of the spinal cord
Epithelial cells that line the choroid plexus are called:
Choroidal cells
Forms the blood-brain barrier:
Endothelium of capillaries and choroidal cells
Protects the brain from chemicals and other substances circulating in the blood that could harm the brain tissue.
Blood-brain barrier
Epithelial cells that originate from the ________ line the pia and _________.
Mesoderm; arachnoid
Protective fluid, cushion and lubrication of brain & spinal column
Serves as a nutrient & metabolic waste exchange fluid
CSF
Produces approximately 70% of the CSF
Choroid Plexuses
Produces CSF by selective filtration at a rate of 20mL/hr
Choroid Plexuses
Reabsorbs from the CSF & returns them to the blood
Choroid Plexuses
Produces approximately 30% of the CSF
Ependymal living cells of the centrioles and the subarachnoid space.
Composition of CSF
Water and H2O soluble substances like chloride, CO2, creatinine, glucose and urea.
Rate of prod:
500mL/day or 20ml/hour
CSF volume in adults:
90-150mL
CSF volume in Neonates:
10-60mL
