mesenchyme

/mes-eng-kahym, mez-/US // ˈmɛs ɛŋ kaɪm, ˈmɛz- //UK // (ˈmɛsɛŋˌkaɪm) //

中胚层,间充质,间质细胞,间质层

Definitions

n.名词 noun

1
Embryology.
- : cells of mesodermal origin that are capable of developing into connective tissues, blood, and lymphatic and blood vessels.

Not before the skeleton or mesenchyme is formed in the sea urchin egg is the influence of the nucleus noticeable.
The former is called simply epithelial mesoderm, the latter mesenchyme.
In Echinodermata a certain amount of mesenchyme appears before the epithelial mesoderm, which is formed later as gut-diverticula.
Mesenchyme is the tissue which in Vertebrate embryology has frequently been called embryonic connective tissue.
About thirty of the mesenchyme cells are occupied in the formation of skeleton substance on each side of the larva.