After injection of biotinylated dextran amine (BDA) into the lumbosacral intermediolateral nucleus, many BDA labeled axon terminals were found in the parabrachial nucleus with a light ipsilateral dominance.

• 将BDA注射于中间带外侧核后，顺行标记的轴突终末出现于双侧的臂旁核，同侧略多。