File:Stage19 bf2b.jpg

Human embryo - 7 week

External appearance appears to be a Carnegie stage 19 embryo.

Original Author Legend

"The size (2cm in length) and anatomic features suggest development equivalent to a nine-week pregnancy (or seven weeks post ovulation). In obstetrics, pregnancy is dated from the first day of the last menstrual period, which is about two weeks prior to the ovulation that resulted in the pregnancy."

Original file name: 548063929_d087ee4a1f.jpg

http://www.flickr.com/photos/euthman/548063929/

Uploaded to Flickr on June 14, 2007 by Ed Uthman Image (pathologist in Houston, Texas)

http://creativecommons.org/licenses/by/2.0/

Human Embryo

Carnegie Stage 19

Facts: Week 7, 48 - 51 days, 16 - 18 mm

View: Lateral view. Amniotic membrane removed.

Features: eyelid, eye, external acoustic meatus, auricle of external ear, digital ray, wrist, liver prominence

Identify: straightening of trunk, pigmented eye, eyelid, external acoustic meatus, digital rays, liver prominance, thigh, ankle, foot plate, umbilical cord Kyoto-stage19.jpg

Image version links: ExtraLarge 2054x3081px | Large 683 x 1024px | Medium 333 x 500px | Small 160 x 240px

Carnegie Stages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | About Stages | Timeline

Cite this page: Hill, M.A. (2024, May 6) Embryology Stage19 bf2b.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage19_bf2b.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G