| spiny neuron | McDonald (McDonald) | The lateral subdivision of BST, located at the level of the anterior commissure (Fig. I) consists of a fairly homogeneous population of spiny neurons (Fig. 2, cell B). These cells have ovoid perikarya that average 17x 14 micrometers in diameter, and 4-5 primary dendrites that radiate in all directions. Dendrites branch several times and extend 150-200 micrometers from the cell body. Perikarya and primary dendrites exhibit few spines but secondary and more distal dendrites have a dense covering of spines (Fig. 2, cell B). Most spines consist of a short stalk capped by a small terminal swelling. Axons usually originate from the cell body and may exhibit spines on their axon hillock and initial segment. Axons, which can only be followed for 50-100micrometers until they pass out of the section or abruptly cease to impregnate, often give off one or more thin, beaded collaterals that appear to be confined to the vicinity of the cell. No preferred axonal trajectory was observed.
| synonim | | This cell type bears strong similarities to the type described by McDonald (1983) in the "lateral subdivision of the BST", which clearly corresponds to the Ov reported by Ju and Swanson (1989). | Larriva-Sahd J. | Mihail Bota |
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