File:Streeter1957 stage 22 plate01.jpg

From Embryology

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Plate 1. Photographs of three embryos belonging to horizon xxii

Evidence of growth of the eyelids is apparent in all the embryos of horizons xix to xxiii. The eyes are more than half covered by the lids in specimens of age group xxii. The extremities have increased in length, and the digits touch or overlap. x3.

Figs. 63-65 No. 6701.

Figs. 66-68 No. 6832.

Figs. 69-71 No. 8394.


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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)
Links: 1 Graph Embryos 11-23 | 4 Eye and optic nerve 19-23 | Plate 1 - Cornea | Plate 2 - Hypophysis

Reference

Streeter GL. Developmental Horizons In Human Embryos Description Or Age Groups XIX, XX, XXI, XXII, And XXIII, Being The Fifth Issue Of A Survey Of The Carnegie Collection. (1957) Carnegie Instn. Wash. Publ. 611, Contrib. Embryol., 36: 167-196.


Cite this page: Hill, M.A. (2024, May 22) Embryology Streeter1957 stage 22 plate01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Streeter1957_stage_22_plate01.jpg

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