Crown-Rump Length: Difference between revisions
mNo edit summary |
mNo edit summary |
||
| Line 4: | Line 4: | ||
(CRL, greatest length, GL) A measurement used in embryology to more accurately stage the early embryo, also historically called the "greatest length" (GL). Measured from the curvature at the top (crown) to the curvature at the bottom (rump) of the "C-shaped" early embryo. Used in clinical [[ultrasound]] as a measurement between the periods of 7 to 13 weeks as an accurate estimation of the gestational age. | (CRL, greatest length, GL) A measurement used in embryology to more accurately stage the early embryo, also historically called the "greatest length" (GL). Measured from the curvature at the top (crown) to the curvature at the bottom (rump) of the "C-shaped" early embryo. Used in clinical [[ultrasound]] as a measurement between the periods of 7 to 13 weeks as an accurate estimation of the gestational age. | ||
==Embryo CRL== | |||
{| | |||
| [[File:Mall1918-fig01.jpg|400px]] | |||
| [[File:Streeter1920chart1.jpg|400px]] | |||
|- | |||
| Mall (1918)<ref>{{Ref-Mall1918}}</ref> | |||
| Streeter (1920) Graph of embryo CRL<ref>{{Ref-Streeter1920}}</ref> | |||
|} | |||
==Fetal CRL== | |||
[[File:Keibel Mall 144.jpg|thumb|Human Embryo No. 131 90 mm CRL]] | |||
[[File:Fetal length change.jpg|600px]] | |||
==Third Trimester CRL== | |||
[[File:Third trimester Crown-Rump Length graph.jpg|600px]] | |||
==References== | ==References== | ||
Revision as of 12:34, 21 July 2016
Embryology - 11 Mar 2026    Expand to Translate
|
|---|
| Google Translate - select your language from the list shown below (this will open a new external page) |
|
العربية | català | 中文 | 中國傳統的 | français | Deutsche | עִברִית | हिंदी | bahasa Indonesia | italiano | 日本語 | 한국어 | မြန်မာ | Pilipino | Polskie | português | ਪੰਜਾਬੀ ਦੇ | Română | русский | Español | Swahili | Svensk | ไทย | Türkçe | اردو | ייִדיש | Tiếng Việt These external translations are automated and may not be accurate. (More? About Translations) |
Introduction
(CRL, greatest length, GL) A measurement used in embryology to more accurately stage the early embryo, also historically called the "greatest length" (GL). Measured from the curvature at the top (crown) to the curvature at the bottom (rump) of the "C-shaped" early embryo. Used in clinical ultrasound as a measurement between the periods of 7 to 13 weeks as an accurate estimation of the gestational age.
Embryo CRL
|
|
| Mall (1918)[1] | Streeter (1920) Graph of embryo CRL[2] |
Fetal CRL
Third Trimester CRL
References
- ↑ Mall FP. On the age of human embryos. (1918) Amer. J Anat. 23: 397-422.
- ↑ 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.
Journals
Reviews
Articles
Search Pubmed
Search Pubmed: Crown-Rump Length | Crown Rump Length
Glossary Links
- Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link
Cite this page: Hill, M.A. (2026, March 11) Embryology Crown-Rump Length. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Crown-Rump_Length
- © Dr Mark Hill 2026, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
