Carnegie stage 16: Difference between revisions

Revision as of 12:34, 4 September 2009

Facts: Week 6, 37 - 42 days, 8 - 11 mm

View: Lateral view. Amniotic membrane removed.

Features: eye showing retinal pigment, nasolacrimal groove, nasal pit, fourth ventricle of brain, umbilical cord, 1st and 2nd pharyngeal arches, cervical sinus, heart, developing arm with hand plate, foot plate

Identify: nasal pit, nasolacrimal groove, eye, 1st, 2nd and 3rd pharyngeal arches, 1st pharyngeal groove, maxillary and mandibular components of 1st pharyngeal arch, auricular hillocks, fourth ventricle of brain, heart prominence, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord Labelled Stage 16

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

Mesoderm: heart prominence

Head: 1st, 2nd and 3rd pharyngeal arch, forebrain, eye, auricular hillocks

Body: heart, liver, umbilical cord, mesonephric ridge

Limb: upper and lower limb buds, hand plate, developing arm

Image source: Embryology page Created: 19.03.1999

Introduction

Facts

Events

Features

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

Bright Field

Kyoto Collection

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

Image source: Embryology page Created: 19.03.1999

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 1) Embryology Carnegie stage 16. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_stage_16

What Links Here?

Dr Mark Hill 2009, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

@@ Line 22: / Line 22: @@
+== Introduction ==
-===Carnegie Stages Link===
-[[Carnegie_stage_1|1]] | [[Carnegie_stage_3|3]] | [[Carnegie_stage_7|7]] | [[Carnegie_stage_8|8]] | [[Carnegie_stage_9|9]] | [[Carnegie_stage_10|10]] | [[Carnegie_stage_11|11]] | [[Carnegie_stage_12|12]] | [[Carnegie_stage_13|13]] | [[Carnegie_stage_14|14]] | [[Carnegie_stage_15|15]] | [[Carnegie_stage_16|16]] | [[Carnegie_stage_17|17]] | [[Carnegie_stage_18|18]] | [[Carnegie_stage_19|19]] | [[Carnegie_stage_20|20]] | [[Carnegie_stage_21|21]] | [[Carnegie_stage_22|22]] | [[Carnegie_stage_23|23]]
-== About Carnegie Stages ==
+===Facts===
-Carnegie stages are named after the famous US Institute which began collecting and classifying embryos in the early 1900's. Stages are based on the external and/or internal morphological development of the embryo, and are not directly dependent on either age or size. The human embryonic period proper is divided into 23 Carnegie stages. Carnegie stages are based on the external and/or internal morphological development of the embryo, and are not directly dependent on either age or size. Criteria beyond morphological features include age in days, number of somites present, and embryonic length.
-The Kyoto Collection images are reproduced with the permission of '''Prof. Kohei Shiota'''. Scanning electron micrographs of the Carnegie stages of the early human embryos are reproduced with the permission of '''Prof Kathy Sulik'''. Images are for educational tutorial/revision purposes and cannot be reproduced electronically or in writing without permission.
+===Events===
-== UNSW Embryology Links ==
-* [http://embryology.med.unsw.edu.au/wwwhuman/Stages/stage16.htm Embryology Carnegie stage 16 Created: 19.03.1999]
-* [http://embryology.med.unsw.edu.au/wwwhuman/Stages/carnegie.htm About the Carnegie Institute]
-===Glossary Links===
+===Features===
-[[A|A]]  | [[B|B]] | [[C|C]] | [[D|D]] | [[E|E]] | [[F|F]] | [[G|G]] | [[H|H]] | [[I|I]] | [[J|J]] | [[K|K]] | [[L|L]] | [[M|M]] | [[N|N]] | [[O|O]] | [[P|P]] | [[Q|Q]] | [[R|R]] | [[S|S]] | [[T|T]] | [[U|U]] | [[V|V]] | [[W|W]] | [[X|X]] | [[Y|Y]] | [[Z|Z]]
+{{Template:Carnegie_stages}}
+== Bright Field ==
+==Kyoto Collection==
+View: This is a dorsolateral view of embryo. Amniotic membrane removed.
+Image source: [http://embryology.med.unsw.edu.au/wwwhuman/Stages/stage15.htm Embryology page Created: 19.03.1999]
+{{Template:Carnegie_stages}}
+{{Kyoto collection}}
+{{Template:Footer}}
+[[Category:Human Embryo]] [[Category:Carnegie Stage]] [[Category:Week 5]]
 :Dr Mark Hill 2009, '''''UNSW Embryology''''' ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
 [[Category:Human Embryo]] [[Category:Carnegie Stage]] [[Category:Week 6]]