Observation on Axonal Terminals and Synaptic Relations in the Middle Part of the Nucleus Tractus Solitarius (NTS) of Rat──Morphologic Study on Acupuncture Analgesia
The normal ultrastructure in the middle part of NTS of rat was examined with EM. Results: The most common type of axo nal terminals was mainly contained round clear vesicles (R terminal).The terminals with clear pleomorphic vesicles (PL terminal) and terminals contained large granilar vesicles (LG terminal) were often observed. A small number of terminal were that filled mainly by clear flat vesicles (F terminal). The Synaptic relations of the terminals in NYS were mainly axodendritic (95 .5% ). 3.3% of the...