sphenoidotomy
sphenoid sinus
sphenoethmoidal recess
sphenoidectomy
transverse sinus
sinus transversus
cavernous sinus
sinus rectus
tentorial sinus
straight sinus
oblique vein of the left atrium
vena obliqua atrii sinistri
confluence of sinuses
frontal sinus
parasinus
vena posterior ventriculi sinistri
pharyngeal recess
posterior vein of the left ventricle
internal jugular vein
coversine
fenestrule
epinaos
cardiac plexus
plexus cardiacus
doorcheek
superior ophthalmic vein
superior sagittal sinus
sinusectomy
sinus cavernosus
ophthalmic vein
jugular foramen
vena ophthalmica
spheroplasting
dactylostyle
sinupalliate
sinus sigmoideus
Thebesian valve
sigmoid sinus
ethmoid sinus
inferior sagittal sinus
ethmoidal sinus
sinus ethmoidales
venae profundae clitoridis
maxillary sinus
left coronary artery
opercularization
pharyngostomy
interpalatine
superior petrosal sinus
endospore