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. 2018 Jul 24;12:63. doi: 10.3389/fnana.2018.00063

Figure 3.

Figure 3

Drawing of anterogradely labeled axons with boutons in representative brain regions following the injection of BDA in the cNTS. Both types of boutons en passant and terminaux were differentially observed according to the brain regions. Dense aggregates of fine boutons are noted consistently in the nucleus of the tractus solitarius (NTS) and PBL, while larger boutons were observed less frequently in the BNST. Each example of axons and boutons was traced and drawn en bloc as an interconnected structure sampled from preparations of 50-μm thick sections.