ostium

/os-tee-uhm/US // ˈɒs ti əm //UK // (ˈɒstɪəm) //

支骨架,脑骨,骨膜,支骨膜

Definitions

n.名词 noun

1
plural os·ti·a [os-tee-uh]. /ˈɒs ti ə/.
- : Anatomy, Zoology. a small opening or orifice, as at the end of the oviduct.
- : Zoology. one of the tiny holes in the body of a sponge.

This will bring the anterior wall of the sinus with its ostium into view.
Aurelius had gone out into the ostium, which was still being shaken with the blows at the door.
In acute cases of salpingitis the cœlomic ostium is open and the infective material can be seen leaking from it (Fig. 3).
The really favouring factor in the case is the condition of the cœlomic ostium of the tube.
The contents of the cavity generally make their way through the natural ostium, before any of the bony walls give way.