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. Author manuscript; available in PMC: 2009 Dec 10.
Published in final edited form as: Neuroscience. 2008 Oct 2;157(4):850–863. doi: 10.1016/j.neuroscience.2008.09.043

Fig. 3.

Fig. 3

TH+ terminals innervate unlabeled dendrites and spines in the BLa. A) A DAB-labeled TH+ terminal (THt) forms a synapse (arrow with large arrowhead) and an apposition (arrow with small arrowhead) with thin unlabeled dendrites (Ud). B) A DAB-labeled TH+ terminal makes an apposition (arrow with small arrowhead) with an unlabeled spine neck. The head of this spine also receives an asymmetric synapse from an unlabeled axon terminal (Ut). Also in this field is an unlabeled dendrite (Ud) receiving synaptic input (arrow with large arrowhead) from a separate TH+ terminal (THt). Both micrographs are from TH/PV preparations, but there are no PUR labeled PV+ structures in this field. Scale bars = 500 nm.