entoderm

Definitions

Examples

• The terms ectoderm and entoderm were introduced by Allman in 1853 for the two cell-layers in the Hydrozoa.

• The body consists of two layers of cells, the ectoderm on the outside and the entoderm lining the digestive cavity.

• It always forms in the embryo out of the entoderm or layer which becomes the lining of the intestine.

• Also almost any part of the animal containing both ectoderm and entoderm can be cut off and will develop into a new animal.

• In our bodies only the lining of the mid-intestine and of its glands has arisen from the entoderm.