Formation of the pharyngeal arch arteries in the chick embryo. Observations of corrosion casts by scanning electron microscopy

1995 ◽  
Vol 191 (5) ◽  
pp. 415-423 ◽  
Author(s):  
Tamiko Hiruma ◽  
Reiji Hirakow
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Chick Embryo ◽  
Pharyngeal Arch ◽  
Corrosion Casts ◽  
Pharyngeal Arch Arteries ◽  
Scanning Electron

Hypophyseal angioarchitecture of common tree shrew (Tupaia glis) revealed by scanning electron microscopy study of vascular corrosion casts

1991 ◽  
Vol 192 (3) ◽  
pp. 263-273 ◽  
Author(s):  
Paiwan Sudwan ◽  
Panjit Chunhabundit ◽  
Sirinush Bamroongwong ◽  
Pongsak Rattanachaikunsopon ◽  
Reon Somana
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Tree Shrew ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Corrosion Casts ◽  
Tupaia Glis ◽  
Common Tree ◽  
Scanning Electron ◽  
Vascular Corrosion Casts

The development of the notochord in the chick embryo, studied by scanning and transmission electron microscopy

Development ◽  
1976 ◽  
Vol 35 (2) ◽  
pp. 383-401
Author(s):  
Mary Bancroft ◽  
Ruth Bellairs
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Chick Embryo ◽  
Intercellular Spaces ◽  
Notochordal Cells ◽  
Fibrillar Material ◽  
Transmission Electron ◽  
Phases Of Development ◽  
Scanning Electron

The notochord of the chick embryo between stages 5 and 23 inclusive has been studied by scanning electron microscopy, supplemented by transmission electron microscopy. Three main phases of development are described, and these have been designated: bilaminar; rodlike, unvacuolated; rod-like and vacuolated. The change in shape of the organ from bilaminar to rod-like is accompanied by changes in the shape, orientation and position of the cells, an increase in the complexity of the cell contacts, and the laying down of a basal lamina. The change from the unvacuolated to the vacuolated phase is accompanied by increasing complexity within the cytoplasm. Most of the vacuoles are intracellular and appear empty though some contain a granular material. The notochordal sheath appears to be secreted by the notochordal cells and fine fibrillar material has been seen in the intercellular spaces. By stage 23, most of the notochordal cells have become so highly vacuolated that the cytoplasm has become closely packed around the nucleus.

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