3-D tracing of biocytin-labelled pallido-thalamic axons in the monkey.
This study presents three-dimensional tracings of axons and axonal endings of associative pallido-thalamic axons in the monkey (Macaca mulatta, M. irus). Injections of the anterograde tracer biocytin were made in the dorsal, associative region of the medial pallidum. Numerous axonal endings were observed throughout the pallidal territory of the thalamus. Four individual axons were reconstructed from serial sections and traced in three dimensions. The initial branch of each axon subdivided successively, each new branch ending in a different part of the pallidal territory. Each of the latter branches ended in a characteristic, extremely dense terminal arborization, that we called a bunch. Associative medial pallidal information may therefore be distributed throughout the pallidal territory by means of numerous branches and bunches.
Arecchi-Bouchhioua
P
P
Laboratoire de Neuromorphologie Informationnelle et de Neurologie Expérimentale du Mouvement, INSERM (U 289), Hôpital de la Salpetrière 47, Paris, France.
Yelnik
J
J
François
C
C
Percheron
G
G
Tandé
D
D
D000818:Animals; D001369:Axons / Q000737:chemistry*; D005917:Globus Pallidus / Q000737:chemistry* / Q000648:ultrastructure; D007091:Image Processing, Computer-Assisted; D008239:Lysine / Q000031:analogs & derivatives* / Q000032:analysis; D008253:Macaca mulatta; D008845:Microinjections; D008853:Microscopy; D015203:Reproducibility of Results; D013238:Stereotaxic Techniques; D013788:Thalamus / Q000737:chemistry* / Q000648:ultrastructure
C013411:biocytin; D008239:Lysine