MCQ Head Flashcards
What is the pterion?
region where the frontal, parietal, temporal and sphenoid join together
located on the side of the skull (just behind the temple)
circular structure 2cm in diameter
contains a small portion of frontal and parietal bones
Grooves for the two major branches of the middle meningeal artery are located predominantly in which bones?
parietal and temporal
What is the fourth ventricle partially bounded by?
cerebellum
pons
medulla oblongata
What does the midbrain surround?
cerebral aqueduct
What are the features of each lateral ventricle?
trigone
choroid plexus on part of its roof and floor
the caudate nucleus forms part of its wall
What are the reflections of the dura mater?
diaphragmatic sellae
tentorium cerebelli
falx cerebri
falx cerebelli
Where are the choroid plexuses located?
roof of the third ventricle
trigone of the lateral ventricles
interventricular foramina
What lies lateral to the thalamus?
putamen (lentiform nucleus)
claustrum
With regards to the meninges of the brain, tell me about the falx cerebri as it ages, the venous sinuses and the longitudinal fissure
venous sinuses split the dura mater into 2 layers
longitudinal fissure contains all 3 layers of meninges
the falx cerebri may calcify with age
What is the cisterna magna?
a dilation of the subarachnoid space
What is the internal carotid artery?
begins at level C3/C4
the cervical part has no named branches
the cavernous part grooves the body of the sphenoid bone
petrous part course through the temporal bone
What arteries arise from the basilar artery?
superior cerebellar artery
posterior cerebral artery
anterior inferior cerebral artery
What arteries contribute to the formation of the circle of willis?
cerebral part of the internal carotid artery posterior cerebral arteries posterior communicating arteries anterior cerebral arteries anterior communicating artery
Which sinuses drain into the confluence of sinuses?
superior sagittal sinus
inferior sagittal sinus
occipital sinus
straight sinus
Regarding the ventricular system of the brain tell me about:
the medulla oblongata’s relation to the central canal
the midbrains relation to the cerebral aqueduct
the trigone and choroid plexus
and apertures of the 4th ventricle
the medulla oblongata surrounds part of the central canal
the midbrain surrounds the cerebral aqueduct
the trigone of the lateral ventricles contains a choroid plexus
the 4th ventricle has apertures in its walls
