Anatomy - Space Occupying Lesions Flashcards
what are the five layers of the scalp from superficial to deep?
skin connective tissue aponeurosis loose connective tissue pericranium
which layer of the scalp contains the named arteries of the scalp?
connective tissue
what helps prevent skull fractures from spreading?
sutures
what type of joint are sutures?
fibrous joints
what is the thinnest part of the skull?
pterion
where is the pterion located?
at the junction between the frontal, parietal, temporal and sphenoid bones
what artery courses over the deep aspect of the pterion?
middle meningeal artery
what is found adherent to the internal aspect of the skull?
dura mater
what nerve supplies the dura mater?
CN V
what is the tough sheet of dura mater that forms a roof over the pituitary fossa called?
diaphragm sellae
what is the tentorium cerebelli?
a sheet of dura mater covering the cerebellum
where does the tentorium cerebelli attach?
to the ridges of the petrous temporal bones
why does the tentorium cerebelli contain a central gap?
to let the brainstem pass through
where is the confluence of the sinuses found?
in the midline of the internal occipital protuberance
what artery supplies the medial aspect of the right cerebral hemisphere?
right anterior cerebral artery
