Figure 3.

A–FF, Horizontal sections of labeled terminal fields of the IX nerve (green; A, E, I, M, Q, U, Y, CC), CT nerve (blue; B, F, J, N, R, V, Z, DD), and GSP nerve (red; C, G, K, O, S, W, AA, EE), and for the merged images of all three nerves (MERGE; D, H, L, P, T, X, BB, FF) for control (Control; A–D, I–L, Q–T, Y–BB) and αENaC knock-out (KO; E–H, M–P, U–X, CC–FF) mice in the far dorsal (A–H), dorsal (I–P), and intermediate (Q–X) zones, and ventral (Y–FF) zones within the mouse NST. The approximate location of the NST is outlined in white, as shown in the merged images. The CT–GSP overlap is shown as magenta, the IX–GSP overlap is shown as yellow, the IX–CT overlap in shown as blue-green, and the CT–GSP–IX terminal field overlap is shown as white. Refer to the color guide in F. Scale bar, G, 200 μm. R, Rostral; L, lateral (shown in E).