Fig. 6. Noggin rescues the loss of common crus induced by FGFs. Paint-filled inner ears at E9 from (A) controls or (B-D) embryos implanted at E5 with beads as indicated. Arrows point to the region of the common crus. Arrowheads indicate truncation of canals. Asterisk denotes an ectopic epithelial stump. The endolymphatic ducts in C and D were removed prior to photography. Orientations in D apply to A-C. Scale bar in C: 200 µm for A,B,D.