Template:Endocrine embryo table
From Embryology
| Organ | Stage 13 | Stage 14 | Stage 15 | Stage 16 | Stage 17 | Stage 18 | Stage 19 | Stage 20 | Stage 21 | Stage 22 | Stage 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pineal (Epiphysis) | basement membranes of craniopharyngeal pouch and brain are clearly in contact (O'Rahilly 1973). | slight irregularity in the surface outline of intact head corresponds to future pineal body (O'Rahilly et al. 1982). | pineal body is detectable in roof of diencephalon (Stadium I of Turkewitsch 1933) (O'Rahilly 1968). | cellular migration in an external direction occurs during stages 16 and 17 (Stadium 2 of Turkewitsch 1933) (O'Rahilly 1968). | cellular migration in pineal body forms a distinct "anterior lobe" where follicles appear (Stadium 3 of Turkewitsch 1933) (O'Rahilly 1973 a). | "anterior lobe" shows a characteristic step and wedge appearance (Stadium 4 of Turkewitsch 1933) (O'Rahilly 1968). | pineal body has reached Stadium 5 of Turkewitsch (1933).[1] |
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- ↑ O'Rahilly R. The development of the epiphysis cerebri and the subcommissural complex in staged human embryos. (1968) Anat. Rec., 160: 488-489.
