Difference between revisions of "File:Stage15 bf7.jpg"

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==Human Embryo Carnegie Stage 15==
 
==Human Embryo Carnegie Stage 15==
Carnegie Collection Embryo No.3441
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Carnegie Collection Embryo No. {{CE3441}}
  
 
Facts: Week 5, 35 - 38 days, 7 - 9 mm
 
Facts: Week 5, 35 - 38 days, 7 - 9 mm
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View: Lateral right view. Amniotic membrane removed.
 
View: Lateral right view. Amniotic membrane removed.
  
Events
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Events:
  
Ectoderm: sensory placodes, lens pit, otocyst, nasal pit, primary/secondary vesicles, fourth ventricle of brain,
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{{Ectoderm}}: sensory placodes, lens pit, otocyst, nasal pit, primary/secondary vesicles, fourth ventricle of brain,
  
Mesoderm: heart prominence
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{{Mesoderm}}: heart prominence
  
Head: 1st, 2nd and 3rd pharyngeal arch, forebrain, site of lens placode, site of otic placode, stomodeum
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{{Head}}: 1st, 2nd and 3rd pharyngeal arch, forebrain, site of lens placode, site of otic placode, stomodeum
  
 
Body: heart, liver, umbilical cord, mesonephric ridge
 
Body: heart, liver, umbilical cord, mesonephric ridge
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Identify: midbrain region, nasal pit, lens pit, 1st, 2nd and 3rd pharyngeal arches, 1st pharyngeal groove, maxillary and mandibular components of 1st pharyngeal arch, fourth ventricle of brain, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord
 
Identify: midbrain region, nasal pit, lens pit, 1st, 2nd and 3rd pharyngeal arches, 1st pharyngeal groove, maxillary and mandibular components of 1st pharyngeal arch, fourth ventricle of brain, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord
  
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{{Carnegie Embryo Stage15}}
  
{{Carnegie Embryo Stage15}}
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{| class="wikitable"
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|-
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! Serial No. !! Size (mm) !! Grade !! Fixative !! Embedding Medium !! Plane !! Thinness (µm) !! Stain  !! Year !! Notes
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|-
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| {{CE3441}} ||  E,8.0 Ch., 25x24x20 || Good ||  Formol || Paraffin || {{Sagittal}} ||  10 ||  Al. coch. || 1921 ||
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|}
  
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{{Carnegie Collection stage 15 table}}
  
{{Template:Carnegie_stages}}
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{{Carnegie_stages}}
  
{{Template:Footer}}
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{{Footer}}
  
 
[[Category:Carnegie Stage 15]] [[Category:Week 5]] [[Category:Carnegie Embryo 3441]]
 
[[Category:Carnegie Stage 15]] [[Category:Week 5]] [[Category:Carnegie Embryo 3441]]

Latest revision as of 17:42, 5 October 2020

Human Embryo Carnegie Stage 15

Carnegie Collection Embryo No. 3441

Facts: Week 5, 35 - 38 days, 7 - 9 mm

View: Lateral right view. Amniotic membrane removed.

Events:

ectoderm: sensory placodes, lens pit, otocyst, nasal pit, primary/secondary vesicles, fourth ventricle of brain,

mesoderm: heart prominence

head: 1st, 2nd and 3rd pharyngeal arch, forebrain, site of lens placode, site of otic placode, stomodeum

Body: heart, liver, umbilical cord, mesonephric ridge

Limb: upper and lower limb buds, hand plate

Identify: midbrain region, nasal pit, lens pit, 1st, 2nd and 3rd pharyngeal arches, 1st pharyngeal groove, maxillary and mandibular components of 1st pharyngeal arch, fourth ventricle of brain, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord

Carnegie stage 15: Right | Anterior | Posterior | Left | Right | Anterior | Posterior | Left


Stage 15 Links: Week 5 | Head | Lecture - Limb | Lecture - Gastrointestinal | Lecture - Head Development | Science Practical - Gastrointestinal | Science Practical - Head | Carnegie Embryos | Category:Carnegie Stage 15 | Next Stage 16
  Historic Papers: 1891 | 1905 Cranial and Spinal Nerves | 1914 | 1926 Precervical Sinus | 1948 stages 15-18


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


Serial No. Size (mm) Grade Fixative Embedding Medium Plane Thinness (µm) Stain Year Notes
3441 E,8.0 Ch., 25x24x20 Good Formol Paraffin Sagittal 10 Al. coch. 1921


Carnegie Collection Embryos - Stage 15 
Serial No. Size (mm) Grade Fixative Embedding Medium Plane Thinness (µm) Stain Year Notes
2 E., 7.0 Ch., 25x25x25 Good Alc. P Transverse 15 Al. carm. 1888 Least-advanced third
88 E.,8 Ch., 30x28x15 Poor Alc. P Coronal P Al. coch. 1897
113 E.,8 241 E,6.0 Poor P p Sagittal 10 Borax carmine ?
241 E,6.0 Good Formalin P Transverse 10 H. & Congo red 1904
371 E,6.6 Good Formalin P Sagittal 10 Al. coch. 1913 Shrunken and cracked
389 E., 9 Poor p p Sagittal 20 (Stain - Haematoxylin Eosin) 1907 Tubal
721 E., 9.0 Ch., 30x20x10 Exc. Zenker formol P Transverse 15 (Stain - Haematoxylin Eosin) 1913 Median in group
810 E., 7.0 Ch, 30x25x15 Good Alc. P Sagittal 20 Al. coch 1913
855 E.,7.5 Poor Formalin P Transverse 100 Al. coch. 1914 Pathological between limbs
1006 E,9.0 Ch., 37x26x22 Poor Formalin P Coronal 20 (Stain - Haematoxylin Eosin) or. G. 1914 Operative. Most-advanced third
1091 E,7.2 Ch., 28x26x20 Poor P P Coronal 20 Al. coch. 1915 Macerated
1354 E,7.8 Ch, 35x30x25 Good Formalin P Sagittal 20 Al. coch. 1916 Least-advanced third
1767 E , 11.0 Ch, 41x23x5 Good Formalin P Sagittal 40 (Stain - Haematoxylin Eosin) or. G. 1917 Most-advanced third
2743 E., 7.2 Ch., 19xl8x14 Poor Formalin P Transverse 20 Al. coch. 1919 Macerated. Least-advanced third
3216 E, 6.5 Ch, 30x30x5 Good Formalin P Transverse 20 Al. coch. 1920 Hysterectomy. Least-advanced third
3385 E,83 Ch., 25x20x16 Exc. Corros. acetic P Trans. 20 (Stain - Haematoxylin Eosin) or. G. 1921 Some sections lost. Most-advanced third. Ag added
3441 E,8.0 Ch., 25x24x20 Good Formalin P Sag. 10 Al. coch. 1921
3512 E,8,5 Ch., 33x28x25 Good Formalin P Trans. 10 Al. coch. 1921
3952 E,6,7 Ch., 30x25x15 Good Formalin P Cor. 15 Al. coch. 1922 Median in group
4602 E,9.3 Ch,, 33x30x26 Good Formalin P Sag. 15 Al. coch. 1924 Medical abortion
4782 E,9.0 Ch., I4xl3x11 Poor Formalin P Cor. 20 Al. coch. 1924
5772 E, 8 Poor ? P Cor. 15 Al. coch. eosin 1928
Template:CE5?92 E, 3 Good Corros. acetic C-P Cor. 10 Al. coch. phlox 1929 Transitional to next stage
6223 E ? Poor Alc. C-P Sag. 8 Or. G. 1930 Fragmented sections. Not saved
6504
6506
6508
6595
????
Abbreviations
  • Size - E. is the greatest length of the embryo and Ch. is the mean diameter of the chorion.
  • Grade - total grade of the specimen and includes both its original quality and the condition of the mounted sections.
  • Embedding medium - paraffin (P) or a combination of celloidin and paraffin (C-P).
  • Fixative - formalin (Formol), alcohol and formalin (Alc, formol), Bouin (Bouin solution)
  • ? - unknown or not determined.
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. (2021, September 23) Embryology Stage15 bf7.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage15_bf7.jpg

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© Dr Mark Hill 2021, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current12:20, 7 August 2011Thumbnail for version as of 12:20, 7 August 2011448 × 600 (28 KB)S8600021 (talk | contribs)==Human Embryo Carnegie Stage 15== Carnegie Collection Embryo No.3512 Facts: Week 5, 35 - 38 days, 7 - 9 mm View: Lateral right view. Amniotic membrane removed. Events Ectoderm: sensory placodes, lens pit, otocyst, nasal pit, primary/secondary vesicle