THRC.8 Flashcards
CSF is formed by…
Blood plasma of choroid plexus of the brain
Location of chorid plexus
- 1 x each lateral ventricle
- 2 x each 3rd + 3th ventricle
Describe the flow of CSF
- Withing ventricular system
- Central canal
- Subarachnoid space
Where does CSF enter the subarachnoid space?
From the 4th ventricle
Function of CSF
- Cushions the CNS
- Chemical buffer
- Transport of nutrients/waste
- Acts as a lymphatic system
Lateral ventricle
3rd ventricle
4th ventricle
What is shown
Meninges and ventricles of the brain
Arrows indicate flow of CSF
Lateral ventricle
What is a cistern?
Where the arachnoid and pia mater is more widely seperated
III
3rd ventricle
IV
4th ventricle
18
Mesencephalic aqueduct
15
Lateral aperture of 4th ventricle
17
Choroid plexus, 4th ventricle
16
Central canal
14
Cerebromedullary cistern
- CSF may be obtained from here
- Via needle through the atlantooccipital membrane
24
Quadrigeminal cistern
3
Choroid plexus, lateral ventricle
7
Subarachnoid space
19
Intercrural cistern
What is shown?
The ventricles of the brain
Arrows indicate flow of CSF
Cavity of olfactory bulb
