entoderm

/en-tuh-durm/US // ˈɛn təˌdɜrm //UK // (ˈɛntəʊˌdɜːm) //

内皮层,内皮细胞,内膜,胚胎

Definitions

n.名词 noun

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.