A balloon angioplasty might be done, which is a minimally invasive endovascular procedure where a deflated balloon is inserted into the blockage then inflated to open the artery up.
And every one of the canals widens at its base into sac-like structures, called the utricle and saccule, which are full of hair cells that sense the motion of the fluid.
Four. Commonly made from heat-resistant nylon or polyester, the colorful, usually 80-foot-tall " balloon" part — called the envelope — is laid out on the ground preflight to be partially filled with cold air.