File:Streeter1920chart1.jpg

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Chart 1. Growth curve based on crown-rump length and weight of embryos weighing less than 20 grams

Each specimen measured with the body straightened out is entered as a dot ; those measured in their natural curved posture are entered as crosses. The mean curves drawn through these two fields overlap, showing that if embryos of 36 to 42 mm. are straightened out it adds about 4 or 5 mm. to their length.

Toward the bottom of the chart the foot length in millimeters is plotted according to weight of embryo. A scale showing menstrual age, as in the succeeding charts, is placed at the top of the chart.

This scale is based on chart 6.


Historic Disclaimer - information about historic embryology pages 
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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)
Embryo Size Links: Fig. 1 Fetus grades | Fig. 2 Measuring Instrument | Table 1 sitting height and weight | Table 2 Weight | Table 3 variation height and weight | Table 4 Foot length | Table 5 Head modulus | Table 6 embryos less than 10 grams | Table 7 Page 1 embryos more than 10 grams | Table 7 Page 2 embryos more than 10 grams | Table 7 Page 3 embryos more than 10 grams | Table 7 Page 4 embryos more than 10 grams | Table 7 Page 5 embryos more than 10 grams | Table 7 Page 6 embryos more than 10 grams | Table 7 Page 7 embryos more than 10 grams | Table 7 Page 8 embryos more than 10 grams | Table 7 Page 9 embryos more than 10 grams | Table 7 Page 10embryos more than 10 grams | Chart 1 crown-rump length | Chart 2 curve of growth | Chart 3 Foot length and head modulus | Chart 4 Carnegie Collection over 200 grams | Chart 5 weight and head modulus | Contributions to Embryology

Reference

Streeter GL. Weight, sitting height, head size, foot length, and menstrual age of the human embryo. (1920) Contrib. Embryol., Carnegie Inst. Wash. Publ. , : 143-170.


Cite this page: Hill, M.A. (2024, March 29) Embryology Streeter1920chart1.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Streeter1920chart1.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
Historic Disclaimer - information about historic embryology pages 
Mark Hill.jpg
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)

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