Mouse Anatomical Dictionary - Stage 4 (Advanced division/segmentation)

TS4:    
|   TS4: embryo [12] 
|   |   TS4: compacted morula [13] 
|   |   TS4: inner cell mass [14] (blastocyst)
|   TS4: extraembryonic component [15] 
|   |   TS4: cavities and their linings [16] 
|   |   |   TS4: blastocoelic cavity [17] (blastocelic cavity)
|   |   TS4: second polar body [18] 
|   |   TS4: trophectoderm [19] 
|   |   |   TS4: mural trophectoderm [20] 
|   |   |   TS4: polar trophectoderm [21] 
|   |   TS4: zona pellucida [22]