精子发育成胎儿全过程超清晰照片

    

                                                                                    

 

 

                                                                                         两个精子钻入一个卵子的壳内

                                            

                            

                                           

                                五周大的胎儿，此时的胎儿只有大约9毫米长，面部正在发育，嘴巴、鼻孔和眼睛正在形成

                                 

                                                   

                                          

    11.16周大的胎儿，小家伙用手探索自己的身体以及周围的环境

                         

               

                                                                               36周后，子宫现在紧包着胎儿