Meninges Flashcards
______ is responsible for the production of CSF in the brain
The core of the brain called the Ventricles
Which layer of the meninges contains cerebrospinal fluid
The subarachnoid space
_______ is the terminal end of the spinal Chord
Conus medullaris
What does the pia mater extend as after it crosses the Conus medullaris
Filum Terminnale
Blockage of the flow of csf can lead to hydrocephalus in neonates
What does the leptomeninx refer to
The Pia and Arachnoid
What does the pachymeninx refer to
The dura mater
WHat is the denticulate ligaments and what is its function
It is the extensions of the pia mater, piercing through the arachnoid and attaching to the dura mater
It anchors the spinal chord to the dura mater
What is the name given to arachnoid villi when they enlarge with age
Arachnoid Granulation
______ is the name of the nerve roots that extends pass the conus medullaris
Chorda equina
Chech cerebellomedullary system
or cisterna magna
pituatiry adeemona can affect vranial nerve III
Denticulate ligaments
21 paired lateral extensions of pia mater through the arachnoid
Function of the arachnoid villi and granulations
Filter csf into intracranial venous sinuses
The leptomeninges develop from
Neural crest cells
The two sinuses that are found in the meningeal layer of the dura
The straight sinus
Inferior sagittal sinus
Which veins do intracranial venous sinuses drain into?
Internal jugular veins
Which vein does the superior sagittal sinus usually drain into?
The right transverse sinus
Which vein does the inferior sagittal sinus drain into?
The straight sinus
