The maxillary sinus
THEY CAN'T PULL IT OUT BECAUSE IT IS WHAT IT IS A CAVITY,LIKE SPACE, AREA.IT'S NOT A ROTTEN SINUS.
Sinus.
A sinus is an air cavity in bone.
Nasal or sinus
The acetabulum is the cavity formed by the hip bones.
Sinus
Through blunt trauma, bone cancer (the sinuses will collapse on it's self), and chronic sinus infections. Dental extractions can sometimes result in a punctured sinus cavity.
Is sinus an organ? I need to know if there are other organs in the cranial cavity besides the brain.
sinus cavity
Sinus cavity
renal sinus