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A Human Embryo of Carnegie Stage 12

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Authors
Hwang, Young-il; Chang, Ka Young; Lee, Kwang Ho
Issue Date
1992-03
Publisher
Seoul National University College of Medicine
Citation
Seoul J Med 1992;33(1):87-95
Keywords
EmbryoCarnegie stage
Abstract
A human embryo obtained from a salpinx removed for the treatment of
tubal gestation was serially sectioned and observed. On gross examination, the embryo
showed three prominent pharyngeal arches, but not the cervical sinus. The upper arm
bud had just begun to appear with a slight elevation in the skin ectoderm. Both the anterior
and posterior neuropores had already been closed. The heart was at the cardiac
loop stage. The respiratory diverticulum, the dorsal pancreas and the beginning of the
omental bursa had appeared. In the pharyngeal region, the adenohypophyseal pocket
and the thyroid anlage were observed. The optic evagination showed no regional differentiation
yet. From the above findings, we concluded that this embryo belonged to
Carnegie stage 12.
ISSN
0582-6802
Language
English
URI
http://hdl.handle.net/10371/6344
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Appears in Collections:
College of Medicine/School of Medicine (의과대학/대학원)Dept. of Medicine (의학과)The Seoul Journal of MedicineThe Seoul Journal of Medicine Vol. 33 No.2 (1992)
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