File:Stage14 bf20.jpg: Difference between revisions
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==Human Embryo Carnegie Stage 14== | ==Human Embryo Carnegie Stage 14== | ||
Embryo appears as Carnegie Stage 14 from ectopic pregnancy. | |||
* Embryo is partially enclosed in amniotic membrane. | |||
* Larger cavity is chorionic space (coelom). | |||
* Small sac at left connected to umbilical region is the yolk sac. | |||
* Placental villi are visible outside chorionic membrane. | |||
* Placental blood vessels are visible extending lower left from umbilicus. | |||
{{SOC_Stage14}} | |||
===Stage 14=== | |||
* Week 5, 31 - 35 days, 5 - 7 mm | |||
* Gestational Age {{GA}} week 7 | |||
* Mesoderm: continued segmentation of paraxial mesoderm (30+ somite pairs), heart prominence | |||
* Head: 1st, 2nd and 3rd pharyngeal arch, forebrain, site of lens placode, site of otic placode, stomodeum | |||
* Body: heart, liver, umbilical, upper and early lower limb bud | |||
{{SOC_embryo}} | |||
{{Carnegie stages}} | {{Carnegie stages}} | ||
{{Footer}} | |||
Latest revision as of 14:43, 28 February 2014
Human Embryo Carnegie Stage 14
Embryo appears as Carnegie Stage 14 from ectopic pregnancy.
- Embryo is partially enclosed in amniotic membrane.
- Larger cavity is chorionic space (coelom).
- Small sac at left connected to umbilical region is the yolk sac.
- Placental villi are visible outside chorionic membrane.
- Placental blood vessels are visible extending lower left from umbilicus.
- Stage 14 Links: Embryo lateral view | Embryo lateral view (small) | Embryo lateral view (medium) | Embryo lateral view (large) | Virtual Slide | Embryo ventral view (small) | Embryo ventral view (medium) | Embryo ventral view (large) | Virtual Slide | Carnegie stage 14 | Week 5
Stage 14
- Week 5, 31 - 35 days, 5 - 7 mm
- Gestational Age GA week 7
- Mesoderm: continued segmentation of paraxial mesoderm (30+ somite pairs), heart prominence
- Head: 1st, 2nd and 3rd pharyngeal arch, forebrain, site of lens placode, site of otic placode, stomodeum
- Body: heart, liver, umbilical, upper and early lower limb bud
Image: Dr Steven O'Connor (Houston, Texas) - Other embryo 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
Cite this page: Hill, M.A. (2024, June 25) Embryology Stage14 bf20.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage14_bf20.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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