Meningeal Layers & Vasculature Of The Cerebrum Flashcards
Name the lobes of the cerebrum (4)
- Frontal lobe
- Occipital lobe
- Parietal lobe
- Temporal lobe
Name the three meningeal layers
- Dura mater
- Arachnoid mater
- Pia mater
What is the name of the strongest and outermost layer, protecting the brain and the spinal cord?
Dura mater
The strongest meningeal layer forma three divisions, name these three divisions and which parts of the brain do they fold (6 marks)
- Falx cerebri folds cerebral hemispheres
- Falx cerebello folds cerebellar hemispheres
- Tentoeium cerebello folds horizontally between cerebrum and cerebellum
Name the three dural sinuses
- Superior and inferior sagittal sinus
- Straight sinus
- Transverse sinus
Which layer has a spider web appearance?
Arachnoid mater
Which two meningeal layers end at the sacral segment (S2)
- Dura mater
- Arachnoid mater
Name the difference between the subdural and subarachnoid spaces
- Subdural space = between dura and arachnoid mater
- Subarachnoid space= between arachnoid and pia mater
Name the most delicate meningeal membrane
Pia mater
Which membrane is the closest to the spinal cord
Pia mater
Which meningeal layer ends at L1 (lumbral aspect)
Pia mater
What happens to the pia mater after L1
It becomes the filum terminale
What covers the filum terminale?
- Arachnoid and dura
How do you identify the pia mater on a diagram?
It follows all the sulci and gyri
Where does the cerebrospinal fluid originate?
Choroid plexus
