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| A | adenohypophysial pouch (22), adenohypophysis (14), aortic sac (29), atrioventricular canal (5), atrioventricular junction (1) |
| C | caudal edge of cloacal membrane (1), caudal edge of dermatomyotome 2 (O-2) (2), caudal edge of dermatomyotome 3 (O-3) (1), caudal edge of dermatomyotome 4 (O-4) (1), caudal edge of dermatomyotome 8 (C-4) (2), caudal edge of endoderm (1), caudal edge of hindgut lumen (1), caudal edge of left ventricle (9), caudal edge of neural plate (1), caudal edge of neural tube (2), caudal edge of notochord (2), caudal edge of peritoneal cavity (coelom) (1), caudal edge of rhombencephalon (Rh. D) (1), caudal edge of right ventricle (5), caudal edge of thyroid diverticulum (2), caudal part of dermatomyotome 5 (C-1) (1), caudal part of dermatomyotome 6 (C-2) (1), caudal part of dermatomyotome 7 (C-3) (1), caudal part of dermatomyotome 8 (C-4) (1), caudal part of dermatomyotome 9 (C-5) (1), caudal part of foregut (2), caudal part of interatrial foramen (primum) (1), caudal part of left horn of sinus venosus (1), caudal part of left ventricle (3), caudal part of notochord (2), caudal part of peritoneal cavity (coelom) (2), caudal part of respiratory primordium (1), caudal part of right ventricle (epimyocardium) (1), caudal part of somite 10 (C-6) (1), caudal part of somite 11 (C-7) (1), caudal part of somite 12 (C-8) (1), caudal part of somite 13 (T-1) (1), caudal part of stomodeum (1), caudal part of thyroid diverticulum (1), cephalic edge of aortic sac (1), cephalic edge of atrioventricular canal (1), cephalic edge of chiasmatic plate (D1) (1), cephalic edge of dermatomyotome 1 (O-1) (4), cephalic edge of dermatomyotome 2 (O-2) (1), cephalic edge of dermatomyotome 4 (O-4) (1), cephalic edge of dermatomyotome 5 (C-1) (1), cephalic edge of heart prominence (1), cephalic edge of interatrial foramen (primum) (1), cephalic edge of left neural fold [diencephalon (D1)] (1), cephalic edge of left ventricle (5), cephalic edge of neural fold [telencephalon medium (T)] (1), cephalic edge of right atrium (epimyocardium) (1), cephalic edge of right neural fold [diencephalon (D1)] (1), cephalic edge of right neural fold [diencephalon (D2)] (1), cephalic end of notochord (5), cephalic part of atrioventricular canal (1), cephalic part of dermatomyotome 6 (C-2) (1), cephalic part of dermatomyotome 7 (C-3) (1), cephalic part of dermatomyotome 8 (C-4) (1), cephalic part of dermatomyotome 9 (C-5) (1), cephalic part of dorsal aorta (1), cephalic part of foregut lumen (2), cephalic part of heart prominence (2), cephalic part of laryngotracheal groove (1), cephalic part of neural fold [diencephalon (D1)] (1), cephalic part of otic placode (1), cephalic part of pericardioperitoneal canal (pleural cavity) (1), cephalic part of right atrium (1), cephalic part of somite 10 (C-6) (1), cephalic part of somite 11 (C-7) (1), cephalic part of somite 12 (C-8) (1), cephalic part of somite 13 (T-1) (1), cloacal part of hindgut (10), communication between peritoneal cavity and extra-embryonic coelom (16), continuity of allantois (1), course of common cardinal vein (2) |
| D | dermatomyotome 1 (O-1) (18), dermatomyotome 1-2 intersegmental region (1), dermatomyotome 2 (O-2) (23), dermatomyotome 3 (O-3) (15), dermatomyotome 4 (O-4) (15), dermatomyotome 5 (C-1) (31), dermatomyotome 6 (C-2) (29), dermatomyotome 7 (C-3) (24), dermatomyotome 8 (C-4) (17), dermatomyotome 9 (C-5) (20) |
| E | ectodermal ring (17), edge of atrioventricular canal (4), edge of foregut endoderm (1), edge of junction of neural fold and surface ectoderm (2), edge of surface ectoderm (1) |
| F | floor plate of neural folds (2), floor plate of neural folds [diencephalon (D2)] (1), floor plate [diencephalon (D2)] (1), fused neural folds (1) |
| G | glossopharyngeal neural crest (CN IX) (6) |
| H | hypoglossal neural crest (CN XII) (9) |
| I | interatrial foramen (primum) (8), internal carotid artery (112) |
| J | junction of allantois and hindgut (1), junction of aortic arch 1 and aortic sac (2), junction of aortic arch 1 and dorsal aorta (3), junction of common cardinal veins (1), junction of foregut and midgut (2), junction of left and right ventricles (1), junction of left horn of sinus venosus and left vitelline (omphalomesenteric) vein (1), junction of neural groove and neural plate (1), junction of rhombencephalon and spinal cord (4) |
| L | laryngotracheal groove (6), lateral body fold (10), lateral mesoderm (5), left atrium (172), left horn of sinus venosus (40), left neural fold [diencephalon (D1)] (1), left ventricle (148), lumen of neural tube (22) |
| N | neural crest (2), neural fold [diencephalon (D1)] (13), neural fold [diencephalon (D2)] (11), neural fold [telencephalon medium (T)] (1), neural tube (95), notochord (501) |
| O | olfactory placode (2), optic nerve primordium (CN II) [diencephalon (D1)] (5), optic sulcus (10) |
| P | pericardioperitoneal canal (pleural cavity) (29), perinotochordal lamina (14), peritoneal cavity (251), peritoneal cavity (coelom) (24), pharyngeal arch 2 (36), pharyngeal groove 1 (50), pharyngeal membrane (2), postcardinal vein (224), precardinal vein (144), primary head vein (62), primordial hepatic antrum (1) |
| R | rhombencephalon (Rh. 1) (14), rhombencephalon (Rh. 2) (15), rhombencephalon (Rh. 3) (7), rhombencephalon (Rh. 4) (12), rhombencephalon (Rh. 5) (16), rhombencephalon (Rh. 6) (9), rhombencephalon (Rh. 7) (4), rhombencephalon (Rh. D) (28), right atrium (192), right horn of sinus venosus (18), right ventricle (100), roof plate (249) |
| S | sclerotome (117), sclerotome of dermatomyotome 7 (C-3) (1), somite 10 (C-6) (4), somite 10-11 intersegmental region (1), somite 11 (C-7) (4), somite 12 (C-8) (4), somite 12-13 intersegmental region (1), somite 13 (T-1) (3), somitocoel 10 (2), somitocoel 11 (2), somitocoel 12 (2), somitocoel 13 (2), somitocoel 4 (1), somitocoel 5 (3), somitocoel 8 (2), somitocoel 9 (3), spinal part of neural tube (19), surface ectoderm (one layer) (1) |
| T | tangentially cut endoderm (2), tangentially cut surface ectoderm (8), tangentially cut surface ectoderm (left side) (1), tangentially cut surface ectoderm (right side) (1), tectum of mesencephalon (27), tegmentum of mesencephalon (19), thyroid diverticulum (6), trigeminal neural crest (CN V) (12) |
| U | umbilical vesicle stalk lumen (1) |
| V | vagal neural crest (CN X) (2), vitelline (omphalomesenteric) vein (22) |
