•A: Optic Vesicle •B: Foregut •C: Heart •D: Vitelline vein •E: Opening to foregut •F: Closed neural tube •G: Somite •H: Open neural tube •I: Remnants of primitive streak (arrowhead at anterior neuropore)
•A: Prosenchephalon •B: Optic Vesicle •C: Lens Placode •D: Mesencephalon •E: Rhombencephalon •F: Heart •G: Vitelline vein •H: Forming foregut •I: Neural tube
•A: Ectoderm •B: Mesoderm
•C: Primitive Groove
•D: Newly formed Mesoderm •E: Endoderm
•A: Ectoderm •B: Lateral Plate Mesoderm •C: Unsegmented Paraxial Mesoderm •D: Open neural tube •E: Notochord •F: Endoderm •G: Neural Groove
•A: Ectoderm •B: Lateral Plate Mesoderm •C: Intermediate Mesoderm •D: Somite •E: Neural Tube •F: Notochord •G: Endoderm
•A: Ectoderm •B: Somatic mesoderm •C: Intermediate mesoderm •D: Paraxial mesoderm •E: Neural Tube •F: Endoderm •G: Splanchnic Mesoderm •H: Splanchnopleure folding to form foregut •I: Notochord •J Dorsal Aorta •K: Somatic‐Splanchnic Junction (letter K lies in intraembryonic coelom)
•A: Ectoderm •B: Somatic mesoderm •C: Intermediate mesoderm •D: Paraxial mesoderm •E: Neural Tube •F: Otic Placode •G: Endoderm •H: Splanchnic mesoderm •I: Splanchnopleure folding to form foregut •J: Dorsal Aorta •K: Notochord •L: Somatic‐Splanchnic junction (letter L lies in intraembryonic coelom) M: Vitelline vein N: Primordium of gut muscularis O: Future endodermal lining of foregut
•A: Ectoderm •B: Mesoderm •C: Otic Placode •D: Neural tube •E: Dorsal Aorta •F: Foregut •G: Body folding (Somatopleure) •H: Dorsal Mesocardium •I: Epimyocardium of heart •J: Endocardium of heart •K: Endoderm •L: Pericardial coelom
•A: Ectoderm •B: Mesoderm •C: Neural tube •D: Anterior Cardinal vein •E: Notochord •F: Dorsal Aorta •G: Foregut •H: Body fold •I: Somatic‐Splanchnic junction •J: Splanchnic mesoderm •K: Endoderm •L: Heart
•A: Ectoderm •B: Mesoderm •C: Neural tube •D: Notochord •E: Dorsal Aorta •F: Foregut •G: Body fold •H: Heart/Truncus Arteriosus •I: Endoderm •J: Somatic‐Splanchnic junction
•A: Ectoderm •B: Mesoderm •C: Neural tube •D: Notochord •E: Dorsal Aorta •F: Foregut •G: Ventral Aorta •H: Oropharyngeal membrane
•A: Ectoderm •B: Head mesenchyme •C: Neural tube (Prosencephalon) •D: Infundibulum •E: 1st Aortic Arch •F: Tangential section of foregut
•A: Ectoderm
•B: Head mesenchyme •C: Prosencephalon •D: Optic Vesicle •E: Lens Placode
•A: Myelencephalon •B: Metencephalon •C: Mesencephalon •D: Diencephalon •E: Optic Cup •F: Telencephalon •G: Heart •H: Cephalic (Mesencephalic) Flexure •I: Opening to foregut •J: Closed neural tube •K: Somite •L: Open neural tube •M: Vitelline artery
•A: Somite •B: 3rd Aortic arch •C: Rood of myelencephalon •D: Otocyst (Otic Vesicle) •E: 2nd Aortic arch •F: Metencephalon •G: Mesencephalon •H: Notochord •I: Stomodeum •J: Diencephalon •K: Optic Cup •L: Lens Vesicle •M: Telencephalon •N: Location of Olfactory placode •O: Heart •P: Opening to foregut
•A: Ectoderm •B: Somatic mesoderm •C: Intermediate mesoderm •D: Dermomyotome •E: Somitocoele •F: Sclerotome •G: Somatic‐Splanchnic junction •H: Neural tube •I: Notochord •J: Endoderm •K: Vitelline artery •L: Splanchnic Mesoderm •M: Extraembryonic coelom
•A: Edge of body fold •B: Ectoderm •C: Somatic Mesoderm •D: Posterior Cardinal vein (Intermediate Mesoderm) •E: Dermomyotome •F: Sclerotome •G: Neural tube •H: Notochord •I: Fused Dorsal Aortae •J: Mesonephric Tubule/Duct •K: Splanchnic mesoderm •L: Endoderm
•A: Forming foregut •B: Endoderm •C: Splanchnic mesoderm •D: Ectoderm •E: Somatic mesoderm •F: Intermediate mesoderm •G: Sclerotome •H: Dermomyotome •I: Neural tube •J: Notochord •K: Fused Dorsal Aortae •L: Intraembryonic Coelom •M: Posterior Cardinal vein •N: Ventral edge of body fold •O: Vitelline vein
•A: Heart •B: Liver diverticulum •C: Vitelline vein •D: Liver diverticulum •E: Foregut •F: Splanchnic mesoderm of foregut •G: Fused Dorsal Aortae •H: Intermediate mesoderm •I: Sclerotome •J: Dermomyotome •K: Neural tube •L: Notochord •M: Posterior Cardinal vein •N: Intraembryonic coelom •O: Ventral edge of body fold
•A: Heart •B: Sinus Venosus •C: Intraembryonic coelom •D: Splanchnic mesoderm of foregut •E: Endoderm of foregut •F: Fused Dorsal Aortae •G: Dermomyotome •H: Sclerotome •I: Neural tube •J: Notochord •K: Common Cardinal vein entering Sinus Venosus •L: Ventral edge of body fold
•B: Wall of Diencephalon •C: Diencephalic wall continuous with Optic Cup •D: Diencephalon Infundibulum •E: 1st Pharyngeal arch •F: 1st Aortic arch •G: Pharynx •H: Dorsal Aorta •I: Notochord •J: Anterior Cardinal vein •K: Thin roof plate of Myelencephalon •L: Myelencephalon ectoderm •M: Otocyst (Otic Vesicle) •N: 1st pharyngeal groove/ membrane •O: Head ectoderm •P: Lens Vesicle •Q: Inner layer of Optic Cup •R: Outer layer of Optic Cup
•B: Outer layer of Optic Cup •C: Inner layer of Optic Cup •D: Lens Vesicle continuous w/ surface ectoderm •E: Rathke’s Pouch •F: 1st Aortic arch •G: 1st Pharyngeal groove/ membrane •H: Dorsal Aorta •I: Otocyst (Otic Vesicle) •J: Ectoderm •K: Thin roof plate of Myelencephalon •L: Otocyst continuous w/ surface ectoderm •M: Anterior Cardinal vein •N: Notochord •O: Pharynx •P: 1st Aortic Arch •Q: Diencephalon Infundibulum
•A: Head mesenchyme •B: Diencephalon •C: Anterior Cardinal vein •D: Dorsal Aorta continuous w/ 1st Aortic arch •E: Myelencephalon •F: Anterior Cardinal vein •G: Notochord
•A: Head mesenchyme
•B: Thin roof of Myelencephalon •C: Metencephalon
•D: Isthmus
