Summary
The posterior (caudal) hypothalamus of the lizard, Lacerta sicula R. was investigated by means of Golgi methods. The periventricular grey is formed mainly by isodendritic bipolar and multipolar neurons, while in the lateral hypothalamus a more stellate form of neuronal elements is encountered. CSF-contacting neurons are restricted to the tuberal area and to the paraventricular organ. In the latter area they are highly differentiated and endowed with laterally branched processes. The overall pattern of the lizard hypothalamus (organization of neuropil, lateral nuclei, appearance of cell clusters, morphology of the neuronal elements) represents an intermediate stage in the phylogenetic development of the hypothalamus, being more advanced than the amphibian stage.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Braak H (1968) Zur Ultrastruktur des Organon vasculosum hypothalami der Smaragdeidechse (Lacerta viridis). Z Zellforsch 84:285–303
Butler AB (1973) Architectonic studies of the diencephalon of Iguana iguana (Linnaeus). J Comp Neurol 149:439–461
Cruce JAF (1974) A cytoarchitectonic study of the diencephalon of the Tegu lizard, Tupinambis nigropunctatus. J Comp Neurol 153:215–227
Fasolo A, Franzoni MF (1974) A Golgi study on tanycytes and liquor-contacting cells in the posterior hypothalamus of the newt. Cell Tissue Res 154:151–166
Fasolo A, Franzoni MF (1977) A Golgi study of the hypothalamus of Amphibia. Neuronal typology. Cell Tissue Res 178:341–354
Fasolo A, Franzoni MF (1978) Comparative account of the hypothalamus of amphibians. A neuroanatomic approach. In: Bargmann W (eds) Neurosecretion and neuroendocrine activity. evolution, structure and function. Springer-Verlag, Berlin, p 173
Fasolo A, Gaudino G (1981) Immunohistochemical localization of somatostatin-like immunoreactivity in the hypothalamus of the lizard, Lacerta sicula. Gen Comp Endocrinol (in press)
Fasolo A, Mazzi V, Franzoni MF (1978) A Golgi study of the hyothalamus of Actinopterygii. II. The posterior hypothalamus. Cell Tissue Res 191:433–447
Fasolo A, Franzoni MF, Panzica GC, Panzica Viglietti C (1979) Neuronal pattern in the hypothalamus of submamalian vertebrates. A survey with some evolutionary notes. Neuro-Science Letters, S159
Ghiara G (1963) Ricerche sulla regione tubero-infundibolare dell'ipotalamo nei Rettili. Atti Soc Peloritana Sc Fis Mat Nat IX:145–162
Greenberg N, MacLean PD (1978) Behavior and neurology of lizards. US Department of Health, Education and Welfare, National Institute of Mental Health — Rockville, Maryland (USA)
Marschall C (1980) Hypothalamic monoamines in lizards (Lacerta). A histofluorescence study. Cell Tissue Res 205:95–105
Mazzi V, Franzoni MF, Fasolo A (1978) A Golgi study of the hypothalamus of Actinopterygii. I. The preoptic area. Cell Tissue Res 186:475–490
Oksche A (1976) The neuroanatomical basis of comparative neuroendocrinology. Gen Comp Endocrinol 29:225–239
Oksche A (1978a) Pattern of neuroendocrine cell complexes (subunits) in hypothalamic nuclei: Neurobiological and phylogenetic concepts. In: W Bargmann, A. Oksche, A. Polenov, B. Scharrer (eds). Neurosecretion and neuroendocrine activity. Evolution, structure and function. Springer-Verlag, Berlin Heidelberg New York pp 64–71
Oksche A (1978b) Evolution, differentiation and organization of hypothalamic systems controlling reproduction. Neurobiological concepts. In: Scott DE, Kozlowski GP, Weindl A (eds) Brain-endocrine interaction. III. Neural hormones and reproduction. Karger, Basel, pp 1–15
Oksche A, Zimmermann P, Oehmke HJ (1972) Morphometric studies of tubero-eminential systems controlling reproductive functions. In: Knigge KM, Scott DE, Weindl A (eds) Brain-endocrine interaction. Median eminence: structure and function. Karger, Basel, pp 142–153
Prasada Rao PD, Subhedar N (1977) A cytoarchitectonic study of the hypothalamus of the lizard, Calotes versicolor. Cell Tissue Res 180:63–85
Prasada Rao PD, Subhedar N, Raju PD (1981) Cytoarchitectonic pattern of the hypothalamus in the cobra, Naja naja. Cell Tissue Res 217:505–529
Ramón-Moliner E (1968) The morphology of dendrites. In: Bourne HG (ed) The structure and function of nervous tissue. Vol 1. Academic Press, New York London, pp 205–265
Ramón-Moliner E (1975) Specialized and generalized dendritic patterns. In: Santini M (ed) Golgi Centennial Symposium: Perspectives in neurobiology. Raven Press, New York, pp 87–100
Senn DG (1968) Bau und Ontogenese von Zwischen- und Mittelhirn bei Lacerta sicula (Rafinesque). Acta Anatomica 55S:64–77
Stensaas LJ, Stensaas SS (1968) Astrocytic neuroglial cells, oligodendrocytes and microgliacytes in the spinal cord of the toad. I. Light microscopy. Z Zellforsch 84:473–489
Vigh B, Vigh-Teichmann I (1973) Comparative ultrastructure of the cerebrospinal fluid contacting neurons. Int Rev Cytol 35:189–252
Vigh-Teichmann I, Vigh B (1974) The infundibular cerebrospinal-fluid contacting neurons. Adv. Anatomy Embryology and Cell Biology 50/2. Springer-Verlag, Berlin Heidelberg New York
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Franzoni, M.F., Fasolo, A. The hypothalamus of Lacerta sicula R.. Cell Tissue Res. 223, 61–71 (1982). https://doi.org/10.1007/BF00221499
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00221499