File:ORahilly1987 fig20-2.jpg: Difference between revisions
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==Fig. 20-2. Head Superficial Vascular Plexus - Stages 20-23== | ==Fig. 20-2. Head Superficial Vascular Plexus - Stages 20-23== | ||
Composite drawing showing the edge of the superficial vascular plexus in the head at stages 20-23. A subcutaneous capillary plexus that spreads upward toward the vertex of the head is a conspicuous feature of specimens measuring from about 20-24 mm in length. | Composite drawing showing the edge of the superficial vascular plexus in the head at stages 20-23. | ||
A subcutaneous capillary plexus that spreads upward toward the vertex of the head is a conspicuous feature of specimens measuring from about 20-24 mm in length. | |||
The transition from vascular to avascular mesoderm is more gradual in earlier stages and becomes more abrupt later. | The transition from vascular to avascular mesoderm is more gradual in earlier stages and becomes more abrupt later. | ||
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{{ORahilly1987 figures}} | {{ORahilly1987 figures}} | ||
[[Category:Head]][[Category:Human Embryo]][[Category:Week 8]] | [[Category:Head]][[Category:Human Embryo]][[Category:Blood vessel]][[Category:Week 8]] | ||
[[Category:Carnegie Stage 20]][[Category:Carnegie Stage 21]][[Category:Carnegie Stage 22]][[Category:Carnegie Stage 23]] | [[Category:Carnegie Stage 20]][[Category:Carnegie Stage 21]][[Category:Carnegie Stage 22]][[Category:Carnegie Stage 23]] | ||
Revision as of 09:06, 17 October 2016
Fig. 20-2. Head Superficial Vascular Plexus - Stages 20-23
Composite drawing showing the edge of the superficial vascular plexus in the head at stages 20-23.
A subcutaneous capillary plexus that spreads upward toward the vertex of the head is a conspicuous feature of specimens measuring from about 20-24 mm in length.
The transition from vascular to avascular mesoderm is more gradual in earlier stages and becomes more abrupt later.
Numbers refer to specific Carnegie embryos.
- 1987 Stages: Introduction | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | References | Appendix 1 | Appendix 2 | Historic Papers | Embryonic Development
Cite this page: Hill, M.A. (2024, April 26) Embryology ORahilly1987 fig20-2.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:ORahilly1987_fig20-2.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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