mesoderm (redirected from extraembryonic mesoderm)

mes·o·derm  (mz-dûrm, ms-)

n.

The middle embryonic germ layer, lying between the ectoderm and the endoderm, from which connective tissue, muscle, bone, and the urogenital and circulatory systems develop.

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meso·dermal, meso·dermic adj.

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mesoderm [ˈmɛsəʊˌdɜːm]

n

(Life Sciences & Allied Applications / Zoology) the middle germ layer of an animal embryo, giving rise to muscle, blood, bone, connective tissue, etc. See also ectoderm, endoderm

mesodermal , mesodermic adj

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mesoderm  (mz-dûrm)

The middle of the three primary germ layers of the embryos of vertebrates and other complex animals. In vertebrates, the mesoderm gives rise to the muscles, bones, cartilage, connective tissue, blood, blood and lymph vessels, dermis, kidneys, and gonads. The mesoderm develops during gastrulation from either the ectoderm or the endoderm. The embryos of simpler animals lack a mesoderm. Compare ectodermendoderm

Thesaurus

Noun

1.

mesoderm - the middle germ layer that develops into muscle and bone and cartilage and blood and connective tissue mesoblast germ layer - (embryology) any of the 3 layers of cells differentiated in embryos following gastrulation chordamesoderm, chordomesoderm - the area of mesoderm that forms the notochord mesenchyme - mesodermal tissue that forms connective tissue and blood and smooth muscles