Medical Terminology / Unit 9 MedTerm 0534 short lesson, about 20 seconds
sinus/o: Sinus
Captions available
The idea
The combining form sinus slash o names a sinus, an air-filled cavity within a bone of the skull.
In practice
Sinusitis is inflammation of a sinus.
Where people slip
Sinus takes the plural sinuses, and also an unchanged plural, sinus.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
Something wrong in this lesson? Flag it · Sources for Medical Terminology