Korean J Pathol.
1986 Mar;20(1):116-124.
A Human Embryo of Streeter Age Group XXIII
- Affiliations
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- 1Department of Pathology, College of Medicine, Seoul National University, Seoul, Korea.
Abstract
- A human embryo obtained incidentally from a hysterectomy specimen of a 36 year old woman who was operated for chronic pelvic inflammatory disease, was serially sectioned and reconstructed with 104 section slides. This embryo was characterized by a thick corneal body with well developed Descemet's endothelium, the optic nerve having vascular canal, the cochlear turning a little more than one time, the hypophysis with threadlike stalk, the vomeronasal organ having intermediate long narrow canal, the submandibular gland with deep lumen, the kidney with short secretory tubules and few large glomeruli and a well formed osseous band in the cartilage and bone. From above findings, it was concluded that this embryo belongs to the age group XXIII of Streeter's developmental horizon.
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