大鼠胃前壁的感觉神经支配：—逆行荧光标记法研究

SENSORY INNE RVATION OF THE STOMACH IN RATS-A retrograde fluorescence labeling study

Separate 2% Bb and 3% PI aqueous solutions were injected beneath serosa of tne anterior wall of the gastric corpus or the pylorus antrum near the lesser of curvature in rats to the trace the origin the afferent nerve of the region. The results showed that Bb-labeled cells were found in both nodose ganglia (more cells on the left than on the right side) and in the Tl-Ll spinal ganglia (mainly in T5-T10) . These labeled cells can be referred to as the sensory neurons innervating the concerned parts of the anterior gastsic wall. However, no Pi-labeled cells were found in the above mentioned ganglia, which may perhaps be attributed to the limited distance the fluorescent marker can go and to the peculiar tissue structure of the injected sites.