The hypothalamus of Lacerta sicula R. II. A Golgi study of the preoptic area.

An analysis of the preoptic area of the lizard, Lacerta sicula R., with the use of the Golgi method revealed that: 1) in principle, the dendritic pattern of its neurons is relatively simple; 2) the supraoptic nucleus contains large- to medium-sized bipolar or multipolar neurons together with small, usually multipolar nerve cells; 3) the preoptic periventricular gray and the paraventricular nucleus exhibit a varied neuronal typology, including large multipolar or bipolar elements, abundant CSF-contacting neurons and some tufted elements; and 4) the lateral regions display some conspicuous multipolar neurons.