A three-dimensional ultrastructural study of osteoid-osteocytes in the tibia of chick embryos

1986 ◽  
Vol 246 (1) ◽  
Author(s):  
Carla Palumbo
Keyword(s):  
Ultrastructural Study ◽  
Three Dimensional ◽  
Chick Embryos

scholarly journals Kugelzellen in larval anuran epidermis: an ultrastructural study on tadpoles of Pelobates cultripes (Pelobatidae) and Phyllobates bicolor (Dendrobatidae)

2007 ◽  
Vol 76 (4) ◽  
pp. 213-220 ◽  
Author(s):  
Giovanni Delfino ◽  
Sara Quagliata ◽  
Filippo Giachi ◽  
Cecilia Malentacchi
Keyword(s):  
Cell Surface ◽  
Ultrastructural Study ◽  
Limb Development ◽  
Leydig Cells ◽  
Hind Limb ◽  
Three Dimensional ◽  
Basal Layer ◽  
Dimensional Network ◽  
Clawed Frog ◽  
Pelobates Cultripes

Prior to hind limb development, tadpoles of the western spadefoot frog Pelobates cultripes (Pelobatidae) and dart-arrow frog Phyllobates bicolor (Dendrobatidae) possess large clear cells in the basal layer of the epidermis. These cells closely resemble Kugelzellen (KZn) of larval clawed frog, Xenopus laevis (Pipidae) and share ultrastructural traits with Leydig cells (LCs) of Caudata and Caecilia. In both species, KZn possess a transparent cytoplasm and a remarkable peripheral cytoskeleton of tonofilaments: in the arrow frog tonofilaments form bands parallel to the cell surface, in the spadefoot frog thin bundles, arranged in a three-dimensional network. KZn combine turgor (resulting from the hydrated cytoplasm) with stiffness (from peripheral cytoskeleton), thus providing structural stability to the larval epidermis.

scholarly journals Modification of Postsynaptic Densities after Transient Cerebral Ischemia: A Quantitative and Three-Dimensional Ultrastructural Study

1999 ◽  
Vol 19 (6) ◽  
pp. 1988-1997 ◽  
Author(s):  
Maryann E. Martone ◽  
Ying Z. Jones ◽  
Steve J. Young ◽  
Mark H. Ellisman ◽  
Justin A. Zivin ◽  
...  
Keyword(s):  
Cerebral Ischemia ◽  
Ultrastructural Study ◽  
Three Dimensional ◽  
Transient Cerebral Ischemia
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