Hydrocephalus Flashcards
A build-up of CSF on the brain in the ventricles or cavities
Hydrocephalus
Non-obstructive hydrocephalus
communicating hydrocephalus
Obstructive hydrocephalus
non-communicating
Block at the foramen of Monro
lateral ventricles, but not in third and fourth ventricles
block at cerebral aqueduct
lateral ventricles and third ventricle but not in the fourth ventricle
block at foramina of Luschka and Magendie
congenital malformation of the brain in which the cerebellum is lodged in the foramen magnus and causes hydrocephalus in ALL ventricles
block in the arachnoid vili
all of the ventricles are in communication with on another, but CSF is simply not being resorbed back into venous system “communicating hydrocephalus”
What is responsible for the formation of CSF?
chorid plexus
Obstruction of cerebral aqueduct would cause hydrocephalus in which ventricles?
lateral and third ventricles
What do Schwann cells to?
myelination of the peripheral nervous system
function of astrocytes
maintain extracellular ionic environment
qeiuscent cells that become activated after CNS damage
microgalial
oligodendroglial cells
cells types that make up the myelin of the CNS
The inferior horn of the lateral ventricles are found within what lobe?
the temporal lobe
What lobe is the body of the lateral ventricles found?
parietal
The posterior horn of the lateral ventricle is located in what lobe?
occipital
What portion of the lateral ventricles are located in the frontal lobe?
anterior portion of ventricle
cerebral aqueduct is associated with
the midbrain
Define superior sagittal sinus
a venous structure into which the CSF of the subarachnoid space flows
The third ventricle is associated with what?
thalamus/hypothalamus
What is the fourth ventricle associated with ?
the medulla
how does CSF enter the third ventricle?
via two foramen of monro
