Modifies a noun

• tube: Betty continued to make a good recovery and was able to tolerate an uncuffed double cannula fenestrated tracheostomy tube ( Figure 1 ).

• membrane: A fenestrated sieve membrane and two plugs on both side of the septum are apparent ( arrow heads ).

• sheet: Tunica media is broad and elastic with concentric fenestrated sheets of elastin, and collagen and only relatively few smooth muscle fibers.