Fig. 8.

Often, more than one p75^NTR-IR terminal contacts an NPY-labeled perikaryon or dendrite.A, Two p75^NTR-labeled terminals (p75-T) form symmetric synapses (curved arrows) with the same NPY-containing soma (NPY-SO). This soma received few contacts from other terminals. B,. A large NPY-labeled dendrite is contacted (curved arrows) by two p75^NTR-IR terminals (p75-T). An unlabeled terminal (UT) also contacts (open arrow) the same dendrite as well as a neighboring NPY-IR soma. Scale bars, 0.5 μm.