HI. DEVELOPMENTAL PHYSIOLOGY 



KEY 



1 Theoretical problems and general questions 



2 Methods and techniques 



3 Para-embryological subjects 



a General subjects (e.g. Protozoan development) 

 b Reproduction 



4 Initial development 



a Primordial germs cells 



b Gametogenesis until completion 



1 Spermatogenesis, sperm 



2 Oogenesis, ovum 



3 Egg membranes, capsule fluids 

 c Maturation 



d Ovulation and oviposition 

 e Activation and fertilization 

 f Parthenogenesis 

 g General subjects 



5 Cleavage 



a Cleavage 

 b Cell-lineage 



6 Further development of Evertebrata 

 a General investigations 



1 General subjects 



2 Complete and partial development 



3 Development of movement and behaviour 

 b Embryogenesis (and larval development) 



1 Pre-gastrulation 



2 Gastrulation 



3 Formation of germ layers 



4 Late embryonic development 



5 Larval development 



c Induction, determination etc. 



d Development of parts of the organism 



1 Head 



2 Limbs and tail 



3 Other parts 



e Development of organ systems and organs 

 (Cf. Key on p. 230) 



7 Further development o/ Chordata 

 a General investigations 



1 General subjects 



2 Complete and partial development 



3 Implantation, placentation, extra-embryonic membranes, embryonic fluids 



4 Development of movement and behaviour 

 b Embryogenesis (and larval development) 



1 Pre-gastrulation 



2 Gastrulation 



3 Neurulation 



260 



