Skip Navigation
The Endowment for Human Development
The Endowment for Human Development
Improving lifelong health one pregnancy at a time.
Donate Now Get Free Videos

Movie Theater

The Morula and Blastocyst


5 days

From The Biology of Prenatal Development.Buy Now

Script: 受精後3 ~ 4日までには 胎芽の分割された細胞は 球状を呈し これは 桑実胎芽と呼ばれます

4 ~ 5 日までには 分割球内で腔を形成し 胎芽盤胞と呼ばれる 状態に変化します

胎芽盤胞内の細胞は 内細胞塊と呼ばれ 頭や身体 発育中のヒトに不可欠な 組織等に分化します

All ages referenced to fertilization, not last menstrual period.
See Snapshots   |   Log in to create a playlist
Fertilization 2
Fertilization 2
Cell Division
Cell Division
The Morula and Blastocyst
The Morula and Blastocyst
3 Billion Base Pairs per Cell
3 Billion Base Pairs per Cell
Amnion and Germ Layers
Amnion and Germ Layers
Early Embryonic Development
Early Embryonic Development
When does health begin? Find out now.
Help give babies a healthy start and a healthy future. Donate now.