Brain in the cranium Flashcards
What bones make up the neurocranium
frontal ethmoidal sphenoidal and occipital + pairs of temporal and parietal
What bones make up the viscerocranium
mandible and vomer and pairs of maxillae, inferior nasal conchae, zygomatic, placater, nasal and lacrimal
What are the two parts of the cranium
neuro- and viscero-cranium
What are the three layers of the meninges of the brain outside to inside
dura, arachnoid, and pia
What is the largest artery supplying the meninges of the brain
the middle meningeal artery
Where does the middle meningeal artery come from
its a branch of the maxillary artery, which is a terminal branch of the external carotid artery
Where does the middle meningeal artery run through?
foramen spinosum
What is the arterial supply of the dura mater
middle meningeal artery
where is the skull the thinnest
pterion
where is CSF formed
in the ventricles from the chorioid plexus
Where does CSF exit ventricular circulation
via openings in the roof of the 4th ventricle into subarachnoid space (cisterna magna)
What is another term for the subarachnoid space
cisterna magna
where is CSF reabsorbed
via arachnoid granulations into the systemic veins
What is the source of the middle meningeal artery
The maxillary artery, a terminal branch of the external carotid
