Neuroanatomy - External Features of the Brain Flashcards
Where does the CSF drain into from the dural sinus?
The jugular vein
Which layer is CSF contained within?
Sub-arachnoid
The pia mater is highly vascularised, T or F?
T
The arachnoid mater is highly vascularised and recieves innervation from the trigeminal nerve, T or F?
F - it is avascular and receives no innervation
The dura mater receives innervation from the middle meningeal artery and vein, and receives innervation from the trigeminal nerve, T or F?
T
What is the role of arachnoid granulations?
They allow CSF to re-enter the circulation via the dural venous sinuses
Which meningeal layer folds to form the choroid plexus?
The pia mater
Where is CSF produced?
The choroid plexus
Where do extradural haemotomas occur and what is a common cause?
Between the skull and outer dural layer, common cause is a tear to the middle meningeal artery
What is a characteristic feature of hydrocephalus that can be seen on an MRI/CT scan?
Enlarged lateral and third ventricles
What is the role of the frontal lobe?
Higher intellect, personality, mood, social conduct and language
What is the role of the parietal lobe?
Language and calculation (on dominant side), visuospatial (on non-dominant)
What is the role of the temporal lobe?
Memory and language
What is the role of the occipital lobe?
Vision
What is the precentral gyrus the site of?
Primary motor cortex
