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Self-differentiation of heterotopic ear ectoderm in the embryo of Amblystoma punctatum

โœ Scribed by Yntema, Chester L.

Publisher
John Wiley and Sons
Year
1939
Tongue
English
Weight
960 KB
Volume
80
Category
Article
ISSN
0022-104X

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๐Ÿ“œ SIMILAR VOLUMES

On the duration of the polarization proc
On the duration of the polarization process in the ear primordium of embryos of Amblystoma punctatum (Linn.)
โœ Hall, Edmund K. ๐Ÿ“‚ Article ๐Ÿ“… 1939 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 898 KB

## SEVEN FIOUMS I n the primordium of the internal ear of embryos of the salamander, Amblystoma punctatum (Linn.), there is known to be a polarization which determines the arrangement of the structures along the antero-posterior (cephalo-caudal) axis of the differentiated labyrinth. This polariza

Reversal of polarization in the ear prim
Reversal of polarization in the ear primordium of Amblystoma punctatum (Linn.)
โœ Hall, Edmund K. ๐Ÿ“‚ Article ๐Ÿ“… 1941 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 514 KB

The experimental studies of Harrison ( '24, '36) have revealed the existence of periods of axial polarization in the development of the internal ear of the salamander, Amblystoma punctatum (Linn.). During neural plate a i d fold stages, the ear ectoderm may be transferred t o the ear region of anot

Studies on regeneration in the spinal co
Studies on regeneration in the spinal cord. IV. Rotation about its longitudinal axis of a portion of the cord in Amblystoma punctatum embryos
โœ Hooker, Davenport ๐Ÿ“‚ Article ๐Ÿ“… 1930 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 835 KB

There is abundant evidence that the amphibian cord when severed is capable of reestablishing anatomical and functional continuity. Regeneration occurs whether the cord be merely severed or a portion, either homoplastic or heteroplastic in origin, be introduced either in normal or reversed polarity.