Carnegie stage 11

Facts: Week 4, 23 - 26 days, 2.5 - 4.5 mm, Somite Number 13 - 20

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

Features: rostral neuropore closing, forebrain, neural tube in region of developing spinal cord, somites, caudal neuropore, connecting stalk, amnion

Identify: heart, rostral neuropore closing, forebrain, neural tube in region of developing spinal cord, somites, caudal neuropore, connecting stalk, amnion

Stage 11 Labelled | Stage 11 SEM

Events Ectoderm: Neural tube continues to close, Rostral neuropore closes

Mesoderm: continued segmentation of paraxial mesoderm (13 - 20 somite pairs), heart tube bending

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

Cite this page: Hill, M.A. (2024, April 27) Embryology Carnegie stage 11. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_stage_11

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