en:foetal_embryology

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en:foetal_embryology [2024/07/31 07:03] – brahmantraen:foetal_embryology [2024/08/29 13:53] () – brahmantra
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     * decidua capsularis पाती संपुट     * decidua capsularis पाती संपुट
  
-===== Introduction ===== 
  
-===== Basic process in development  =====+===== SYSTEMIC EMBRYOLOGY =====
  
 +  * [[en:development-of-circulatory-system|Development of cardiovascular system]]
 +  * [[en:development-of-respiratory-system|Development of respiratory system]]
 +  * [[en:development-of-nervous-system|Development of nervous system]]
 +  * [[en:development-of-urogenital-system|Development of urogenital system]]
 +  * [[en:development-of-gastrointestinal-tract|development of gastrointestinal tract]]
 +  * [[en:development-of-skeletal-system|development of skeletal system]]
 +  * [[:en:development-of-face | Development of face ]] 
  
  
-===== Germ Cells and their maturation =====+  * primordial alphabets or germ cells  
 +    * [[:en:alphabetic_fertilization | alphabetic fertilization ]] 
 +    * [[:en:conjunct_zygote | Conjunct zygote ]] 
 +      * [[:en:embryo_word_stages | conjunct alphabet cell groups  or embryo word stages ]] 
 +        * [[:en:first_week_development | first week of development  ]] 
 +          * [[:en:word_morula | Word morula or scattered alphabet cell group ]] 
 +          * [[:en:word_blastocyst | word blastocyst or similar word two groups ]] 
 +        * second week of development  
 +          * [[:en:embryo_word_lineage | Embryo Word lineage or Embryo word differentiation ]] 
 +        * third week of development  
 +        * fourth week of development  
 +        * first month  of development  
 +        * second month of development  
 +        * third month  of development  
 +        * ninth month  of development 
  
  
-===== Fertilization ===== 
  
-  * [[en:fertilization|fertilization]]+      * Alphabet circle / alphabetic sphere  
 +      * alphabetic lineages or alphabetic differentiation  
 +        * alphabet layers 
  
  
-===== Stages of embryology  ===== 
  
 +<a2s>
 +                                          
 +   .----.         
 +   |  X |   - ZYGOTE      
 +   .----.         
 +         
 +  .-----.      
 +  |  XX |   - TWO CELLED STAGE      
 +  .-----.      
 +            
 +  .------.
 +  | XX   |  - FOUR CELLED STAGE    
 +  | XX   |    
 +  .------.    
  
-===== Placenta =====+  .------. 
 +  | XXXX |  - EIGHT CELLED STAGE     
 +  | XXXX |     
 +  .------.                
 +                  
 +  .------. 
 +  | XXXX |  - SIXTEEN CELLED STAGE     
 +  | XXXX |    
 +  | XXXX |  
 +  | XXXX |     
 +  .------.                
 +                  
 +  .------. 
 +  | XXXX |  - FLUID ENTERS BETWEEN CELLS 
 +  | XXXX |    
 +  | XXXX |  
 +  | XXXX |  
 +  | ~~~~ |     
 +  .------.              
  
 +  .--TT--.
 +  | EEEE |  - FLUID ENTERS BETWEEN CELLS , E = inner cell mass (Embryoblast) , T = Trophoblast , ~ = Blastocoel ( Blastocyst cavity)
 +  | EEEE |   
 +  | EEEE | 
 +  | EEEE | 
 +  | ~~~~ |    
 +  .------.
 +  
 +  .--TT--.
 +  | EEEE |  - FLUID ENTERS BETWEEN CELLS , E = inner cell mass (Embryoblast) , T = Trophoblast , ~ = Blastocoel ( Blastocyst cavity)
 +  | EEEE |  - TT = embryonic pole , tt = Abembryonic pole 
 +  | EEEE | 
 +  | EEEE | 
 +  | ~~~~ |    
 +  .--tt--.
 +  
 +  .--TT--.
 +  | CCCC |  - FLUID ENTERS BETWEEN CELLS , E = inner cell mass (Embryoblast) , T = Trophoblast , ~ = Blastocoel ( Blastocyst cavity)
 +  | DDDD |  - TT = embryonic pole , tt = Abembryonic pole 
 +  |      |  - C = Ectoderm , D = Endoderm 
 +  | ~~~~ |    
 +  .--tt--.
 + 
 +.--------TT-----------------.
 +| .-------AAAAAAA---------. |
 +| |                       | |
 +| | A~A~A~A~A~            | |   - A~ = amniotic cavity , Y~ = yolk sac or primary yolk sac
 +| |                       | |
 +| .-------CCCCCCCC--------. |
 +|                           |
 +| .-------DDDDDDDD--------. |
 +| |                       | |
 +| |    Y~Y~Y~Y~Y~         | |
 +| |                       | |
 +| .------HHHHHHH----------. |
 +.---------------------------.
  
-===== Fertilization ===== 
  
-{{:anatomyland:index_embryo_cells.png|}}+</a2s>
  
-==== ZYGOTE ==== 
- 
-{{::anatomyland:zygote.png}} 
- 
-===== STAGES OF EMBRYOLOGY ===== 
- 
-==== CHANGES IN FIRST WEEK  ==== 
-  * [[en:morula|morula]] 
-  * [[en:blastocyst|blastocyst]] 
- 
-**CLEAVAGE** 
- The two cells formed as described above undergo a series of divisions. One cell divides first so that we have a 3 cell stage of embryo followed by 4 cell stage , a 5 cell stage etc. This process is called cleavage. 
- 
-Subdivisions of cleavage  
-  * Stage of compaction : at 8 celled stage 
-  * Morula  
-  * Blastocyst  : between 4th and 5th day 
- 
- 
-**GERMINAL PERIOD** 
- 
-{{::anatomyland:2_cell_embryo.png}} 
-{{::anatomyland:4_cell_embryo.png}} 
-{{::anatomyland:8_cell_embryo.png}} 
-{{::anatomyland:12_celled_embryo.png}} 
-{{::anatomyland:morula.png}} 
- 
-==== CHANGES IN SECOND WEEK  ====  
- 
-{{::anatomyland:blastocyst.png}} 
-{{::anatomyland:differentiation-prefirst.png}} 
-{{::anatomyland:differentiatiofirst.png}} 
-{{::anatomyland:embry-fullblastocyst.png}} 
-{{::anatomyland:embry-yolksac.png}} 
-{{::anatomyland:embryo-extraembrymeso.png}} 
- 
- 
-==== CHANGES IN THIRD WEEK  ====  
- 
- 
-===== SYSTEMIC EMBRYOLOGY ===== 
- 
-  * [[en:development-of-circulatory-system|Development of cardiovascular system]] 
-  * [[en:development-of-respiratory-system|Development of respiratory system]] 
-  * [[en:development-of-nervous-system|Development of nervous system]] 
-  * [[en:development-of-urogenital-system|Development of urogenital system]] 
-  * [[en:development-of-gastrointestinal-tract|development of gastrointestinal tract]] 
-  * [[en:development-of-skeletal-system|development of skeletal system]] 
-  * [[:en:development-of-face | Development of face ]]  
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  • en/foetal_embryology.1722409435.txt.gz
  • 2024/07/31 07:03
  • brahmantra