C2 axonemal microtubule
One of two microtubules present in the axonemal central pair. It is distinguishable from the C1 axonemal microtubule (also called C1 tubule) by the presence of differing protein components of the projections.
GO:0005879
axonemal microtubule
is_a
GO:0097540
axonemal central pair
part_of
C2 tubule
broad