mesenchyme

mes·en·chyme

M0236000 (mĕz′ən-kīm′, mĕs′-)n. The part of the embryonic mesoderm, consisting of loosely packed, unspecialized cells set in a gelatinous ground substance, from which connective tissue, bone, cartilage, and the circulatory and lymphatic systems develop.

[mes(o)- + -enchyma.]

mes·en′chy·mal, mes′en·chym′a·tous (-kī′mə-təs) adj.

mesenchyme

(ˈmɛsɛŋˌkaɪm) n (Physiology) embryol the part of the mesoderm that develops into connective tissue, cartilage, lymph, blood, etc[C19: New Latin, from meso- + -enchyma] mesenchymal, mesenchymatous adj

mes•en•chyme

(ˈmɛs ɛŋ kaɪm, ˈmɛz-)

n. cells of mesodermal origin that are capable of developing into connective tissues, blood, and lymphatic and blood vessels. [1885–90; variant of mesenchyma < Greek mes- mes- + énchyma infusion] mes•en′chy•mal (-kə məl)

Thesaurus

Noun

mesenchyme - mesodermal tissue that forms connective tissue and blood and smooth musclesmesoblast, mesoderm - the middle germ layer that develops into muscle and bone and cartilage and blood and connective tissue

Translations

Mesenchyme

enUK

mesenchyme

[′mez·ən‚kīm] (embryology) That part of the mesoderm from which all connective tissues, blood vessels, blood, lymphatic system proper, and the heart are derived.

Mesenchyme

the embryonic connective tissue in the majority of multicellular animals and man.

In the early stages of embryonic development, mesenchyme consists of motile dendriform cells. Most of these cells later lose their motility and unite by their processes into a network (syncytium) or form local aggregates. The mesenchyme originates from cells that have migrated from various germ layers. For example, the chief source of the mesenchyme in coelenterates, worms, and mollusks is the ectoderm (often also the endoderm), and in chordates and echinoderms, the mesoderm. Mesenchyme that originates from endoderm and mesoderm is called endomesenchyme, and mesenchyme originating from ectoderm (the material of the neural columns), ectomesenchyme. In vertebrates and man, endomesenchyme gives rise to various forms of connective tissue in the adult, formed elements of the blood, blood vessels, and smooth muscles. Almost the entire visceral skeleton (the auditory ossicles, gill arches), the pigment cells, and part of the derma are formed from ectomesenchyme.

The poorly differentiated connective-tissue cells (fibroblasts and reticular cells) found in animals and man during the postembryonic period are sometimes called mesenchyme.

REFERENCE

Tokin, B. P. Obshchaia embriologiia, 2nd ed. Leningrad, 1970.

T. A. DETLAF

mesenchyme

mesenchyma

[mĕ-seng´kĭ-mah] the meshwork of embryonic connective tissue in the mesoderm; from it are formed the connective tissues of the body as well as blood vessels and lymph vessels. adj., adj mesen´chymal.

mes·en·chyme

(mes'eng-kīm), 1. An aggregation of mesenchymal or fibroblastlike cells. 2. Primordial embryonic connective tissue consisting of mesenchymal cells, usually stellate in form, supported in interlaminar jelly. Synonym(s): mesenchyma [mes- + G. enkyma, infusion]

mesenchyme

(mĕz′ən-kīm′, mĕs′-)n. The part of the embryonic mesoderm, consisting of loosely packed, unspecialized cells set in a gelatinous ground substance, from which connective tissue, bone, cartilage, and the circulatory and lymphatic systems develop.

mes·en′chy·mal, mes′en·chym′a·tous (-kī′mə-təs) adj.

mes·en·chyme

(mezĕn-kīm) 1. An aggregation of mesenchymal cells. 2. Primordial embryonic connective tissue consisting of mesenchymal cells, usually stellate in form, supported in interlaminar jelly. [G. mes- middle + G. enkyma, infusion]

mesenchyme

a loose, cellular animal tissue that arises from the embryonic mesoderm, and functions as packing around internal organs. Mesenchyme can be thought of as the animal equivalent of PARENCHYMA in plants.

mes·en·chyme

(mezĕn-kīm) An aggregation of mesenchymal or fibroblastlike cells. [G. mes- middle + G. enkyma, infusion]

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REFERENCE

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Words related to mesenchyme

noun mesodermal tissue that forms connective tissue and blood and smooth muscles

Related Words