KEY TO THE 33 HRS CHICK IMAGES:



IMAGE 1:

1) Optic vesicle

2) Diencephalon

3) Subcephalic pocket

4) Proamnion (ectoderm + endoderm)

5) Neural ectoderm

6) Skin ectoderm

7) Head mesenchyme

8) Somatopleure (ectoderm + somatic mesoderm)

9) Splanchnopleure (endoderm + splanchnic mesoderm)

10) Coelom

IMAGE 4:

1) Metencephalon

2) Bulbus cordis

3) Notochord

4) Foregut

5) Dorsal aortae

6) Somatopleure

7) Skin ectoderm

8) Somatic mesoderm

9) Splanchnopleure

10) Endoderm

11) Splanchnic mesoderm

IMAGE 7:

1) Myelencephalon

2) Cranial intestinal portal

3) Coelom

4) Rudiment of sinoatrial region of heart

5) Notochord

6) Dorsal aortae

7) Vetelline veins

IMAGE 2:

1) Infundibulum

2) Diencephalon

3) Ventral aortae

4) Future lens ectoderm

IMAGE 5:

1) Myelencephalon

2) Skin ectoderm

3) Foregut

4) Dorsal aortae

5) Notochord

6) Thyroid rudiment

7) Ventricle

8) Endocardium

9) Myocardium

10) Pericardial cavity regional coelom

11) Endoderm layer of splanchnopleure

12) Splanchnic mesoderm of splanchnopleure

IMAGE 8:

1) Spinal cord

2) Roof plate

3) Floor plate

4) Somite

5) Notochord

6) Dorsal aortae

7) Coelom

8) Splanchnopleure of lateral plate

9) Somatopleure of lateral plate

10) Endoderm

11) Nephrotome/ pronephric cord

IMAGE 3:

1) Mesencephalon

2) Dorsal aortae

3) Ventral aortae

4) Foregut

5) Oral membrane (a- ectoderm, b- endoderm)

6) Proamnion

IMAGE 6:

1) Myelencephalon

2) Auditory placode

3) Sinoatrial region of heart

4) Dorsal aorta

5) Foregut

6) Somatic mesoderm

7) Junction between somatic and splanchnic mesoderm

8) Splanchnic mesoderm

9) Endocardium

10) Myocardium

11) Notochord

IMAGE 9:

1) Pronephric cord

2) Nephrotome

3) Somite

4) Coelom

5) Dorsal aortae



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