Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
What are the two soft spots on a baby's head called?
|
anterior fontanelle and posterior fontanelle
|
|
|
What are the 3 layers of the meninges?
|
dura mater
arachnoid pia mater |
|
|
What causes epidermal hemorrhaging?
|
A tear in the meningeal artery which causes blood to pull in the epidural space (space between the dura and skull)
|
|
|
Where is the CFS contained?
|
within the subarachnoid space
|
|
|
What are the two secondary vesicles that are prosencephalon?
|
Telecephalon
Diencephalon |
|
|
What ventricle is associated with the mesencephalon?
|
Cerebral aqueduct
|
|
|
What two regions of the brain compose the rhombencephalon?
|
Metencephalon and myelencephalon
|
|
|
What structures of the brain is the 4th ventricle associated with?
|
The rostral 4th ventricle --> metencephalon
The caudal 4th ventricle-->myelencephalon |
|
|
What secretes CSF?
|
choricord plexus
|
|
|
Where is most of the CSF formed?
|
lateral ventricle
|
|
|
What is the path that CFS travels?
|
Lateral ventricle---> (thru formina of monro) 3rd ventricle----> (thru cerebral aquaduct) 4th ventricle----> (foramina of Luschka and Magendie) subarachnoid space
|
|
|
What is the structure called that separates the 2 cerebral hemispheres?
|
Falx cerebri
|
|
|
How is CFS formed?
|
Water (main component) diffuses over the ependymal cell membranes(form tight juctions). NA/K ATP pumps are needed to transport solutes. Other molecules like glucose enter via transport proteins
|
|
|
Where is the lateral ventricles located?
|
Each cerebral hemisphere
|
|
|
Where is the 3rd ventricle located?
|
vertical splitting the thalamus and hypothalamus in half
|
|
|
Where is the 4th ventricle located?
|
Between the pons and the cerebellum
|
|
|
What can cause stenosis of the cerebral aquaduct?
|
meningitis
|
|
|
What is the average volume of CFS in an adult?
What is the largest sinus that contains CSF |
140ml
cisterna magna (between medulla, cerebellum, and occipital bone |
|
|
What must be true about venous and CFS pressure in order for CFS to be absorbed by arachnoid granulations?
|
high CFS pressure and low venus pressure
|
|
|
What is normal pressure for CFS?
|
50-200mm water
|
|
|
If you take a sample of CFS, what pathologies would you look for?
|
RBC= bleeding in brain
lymphocytes=inflammation decrease glucose levels=may be bacterial infection high CFS levels=lesions |
|
|
What glial cells contribute to the BBB?
|
astrocytes form tight juctions
|
|
|
What is the function of the P-glycoprotein coat on brain endothelial cells?
|
Charge deters most molecules from coming close to BBB.
|
|
|
When are natural leaks allowed in the BBB?
|
hormones (pituitary)
osmotic concentrations (neurohypophysis regulates kidney function by plasma osmolarity |
