anatomy of the skull Flashcards
label this
label this
sphenoid fontanelle becomes
pterion
asterion starts life as
mastoid fontanelle
posterior fontanelle becomes
lambda
anterior fontanelle becomes
bregma
when should anterior fontanelle close
18 mo
label this bone. what is it?
temporal
label this
what impoirtant structures live inside the temporal bone
middle and inner ear
label this sphenoid (think what goes through it)
what’s in the middle of the sphenoid and what lives in there
sella turcica - pituitary gland
what is special about temporomandibular jt
has articular disc
is condylar, synovial, hinge
can dislocate
protrusion, retraction, depression, elevation
what articulates with what in TMJ
mandibular condyle with mandibular fossa
how many pairs of sinuses are there; what are they?
4 maxillary, ethmoid, frontal sphenoid
why is trauma to the pterion particularly worrying
middle meningeal artery passes there
where do the cranial nerve 1 emerge
1) cribiform plate of ethmoid bone
where do the cranial nerve 2 emerge
optic canal
where do the cranial nerve 3, 4 6, V1 emerge
superior orbital fissure
V1 then goes to supraorbital foramen
where do V2 emerge
foramen rotundum -> infraorbital foramen
where does V3 emerge
foramen ovale -> mental foramen
where do CN 9,10,11 emerge
jugular foramen
where does CN 12 emerge
hypoglossal canal (on side of foramen magnum)
where does CN 7 and 8 emerge
internal acoustic meatus
what is this. Label the parts
ICA very recognisable tortuous route
