Assertion: centriole's microtubule | /r/HasProperty | hollow cylinder
Facets:
value: themselves
type: MANNER
value: with a central bore
type: OTHER
Source sentences:
text: microtubule is a hollow cylinder, about 25 nm in diameter (with a central bore about 15 nm in diameter).
text: From a structural perspective each centriole is seen to be a cylindrical composition of nine blades, each having three microtubules which are themselves hollow cylinders approximately 400 nm long, with inner and outer diameters of 15 and 25 nm.