File:Johnson1917 plate02.jpg

Plate 2. Neural Tube and Pharynx Model

1. Brain and portion of neural tube. In light numbers are indicated brain and spinal-cord neuromeres, numbered from the mesencephalon backward. The black lines and numbers indicate the position of the body-segments. It is to be noted that the neuromeres are intersegmental in position. X80 diameters.

2. Pharynx, cut longitudinally and left half viewed from medial surface. XI 3.3 diameters. From a model by Mr L. H. Rutlege.

3. Same, viewed from right side with integument removed. X 133 diameters.

4. Ventral surface of same. X 133 diameters.

Johnson Links: Fig 1 | Fig 2 | Fig 3 | Fig 4 | Fig 5 | Fig 6 | Fig 7 | Fig 8 | Fig 9 | Plate 1 | Plate 2 | Plate 3 | Plate 4 | Plate 5 | Plate 6 | Plate 7 | Plate 8 | Explanation of Plates | Contribution No.19 | Volume VI | Contributions to Embryology | Carnegie stage 12 | Week 4

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Reference

Franklin Paradise Johnson A Human Embryo of Twenty-Four Pairs of Somites Contributions to Embryology Carnegie Institution No.19 pp. 125-168. (1917)

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