Template:Mall1918 table5
From Embryology
Table 3 | ||
Stage | Length of Embryo | Approximate Age |
---|---|---|
1. Preparatory period | Less than 20 mm. | (?) 25 |
2. Exoplasrnic development | (I) 20-30 | 25-30 |
3. Exoplasmic development | (II) 39- 55 | 30—40 |
4. Transitory period | 55-140 | 40-75 |
5. Endoplasmic development | (I) 140-170 | 75—105 |
6. Endoplasmic development | (11) 170—220 | 105-110 |
7. Retrogression | 220-290 | 110 to term |