New Headings 

 Cell fusion 



Environmental factors 

 Histoblast 

 Mycetome 



Pesticides 



Phylogenesis 



Pressure 



Subheadings often used under various headings 



Techniques and disciplines 

 Autoradiography 

 Biochemistry (incl. biochemical 



techniques, molecular 



biology, etc.) 



see also: Enzymes, 



Tracer study 

 Biophysics 

 Culture in vitro 

 Cytology 



Descriptive study* 

 Endocrinology 

 Enzymes 



Experimental study* 

 Function 



Processes 



Development* 



Differentiation 



Functional differentiation 



(maturation) 



Growth 



Induction 



Involution (regression) 



Malformations 



Stages 



Early development 



Egg 



Embryo 



Fetus 



Larva 



Neonate 



General study* 



Genetics 



Histology 



Histo-& cytochemistry 



Immunology 



Irradiation 



Microcinematography 



Morphology 



Physiology 



Theoretical study 



Tracer study 



Transplantation 



Ultrastructure 



Metamorphosis 



Morphogenesis 



Necrosis (cell death) 



Organization (pattern formation) 



Pathology 



Regeneration 



Teratogenesis 



Oocyte 



Oogenesis 



Placenta 



Postnatal 



Spermatogenesis 



These subheadings are also used when the available information was not detailed enough to use one 

 of the more specific subheadings. 



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