Carnegie stage 19: Difference between revisions

From Embryology
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File:External ear stages-14-23-adult.jpg|External ear Stages 14-23 and adult
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File:Human embryonic shoulder girdle 02.jpg|Human embryonic shoulder girdle
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Revision as of 09:15, 5 January 2011

Introduction

Stage19 bf1c.jpg

Facts

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


Events

Ectoderm: sensory placodes, lens pit, otocyst, nasal pits moved ventrally, fourth ventricle of brain

Mesoderm: heart prominence, ossification continues

Head: forebrain, eye, external acoustic meatus

Body:straightening of trunk, heart, liver, umbilical cord


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

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



Kyoto Collection

Stage19 bf1a.jpg


View: This is a dorsolateral view of embryo. Amniotic membrane removed.

Image source: Embryology page Created: 19.03.1999


File:Human Embryo 17.8mm.jpg
historic drawing of human embryo

Photographs

Stage19 bf2b.jpg

Ed Uthman Image (pathologist in Houston, Texas)

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


Stage19 bf3b.jpg

Uploaded to Flickr on January 27, 2009 by lunar caustic

Image version links: ExtraLarge 387×2592px | Large 1024x685px | Medium 500x334px | Small 240x161px

Additional Images

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


Image source: The Kyoto Collection images are reproduced with the permission of Prof. Kohei Shiota and Prof. Shigehito Yamada, Anatomy and Developmental Biology, Kyoto University Graduate School of Medicine, Kyoto, Japan for educational purposes only and cannot be reproduced electronically or in writing without permission.


Cite this page: Hill, M.A. (2024, May 19) Embryology Carnegie stage 19. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_stage_19

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