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trophoblast Definition

tropho·blast (träfə blast′)

noun

a layer of nutritive ectoderm outside the blastoderm, by which the fertilized ovum is attached to the uterine wall and the developing embryo receives its nourishment

Etymology: tropho- + -blast

trophoblast Related Forms

troph′o·blas·tic adjective

trophoblast Usage Examples

Converse of object

call: In a healthy pregnancy, fetal cells called trophoblasts do this by ' invading ' the uterus, while communicating with maternal immune cells.

Adjective modifier

  • placental: This interface, consisting of the maternal decidua and the invading placental trophoblast, is exposed to profound changes in oxygen tension during pregnancy.
  • intermediate: Molar disease expressed P2Y6 in the villous trophoblast but not in the proliferative intermediate trophoblast, recapitulating the pattern of first-trimester placenta.
  • human: One example is the 5T4 oncofoetal antigen originally defined by a monoclonal antibody raised against human trophoblast.
  • embryonic: The human placenta arises primarily through proliferation, migration and invasion of the endometrium and its vasculature by the embryonic trophoblast.
  • invasive: In this paper we hypothesized that invasive trophoblast released vasodilators which would dilate spiral arteries as an initial step in the physiology of transformation.

Modifies a noun

  • invasion: Definitions 2 Incomplete trophoblast invasion: the evidence 3 Mechanisms underlying failure of trophoblast invasion: a maternal or fetal problem?
  • cell: RESULTS: The expression of nine genes was strongly different comparing a normal trophoblast cell line with choriocarcinoma cells on the Atlas membranes.
  • inclusion: Kliman and the team identified trophoblast inclusions by performing microscopic examinations of placental tissues.
  • function: We have further utilized in-vitro models to investigate the role of glucocorticoids on trophoblast function ( proliferation, differentiation and invasion ).
  • differentiation: However, the change in NEP expression upon trophoblast differentiation remains to be clarified.
  • migration: Thus, in vitro MMP9 activity appears not to be essential for trophoblast migration.

Browse dictionary entries near trophoblast

  1. tropho-
  2. trophied
  3. -trophic
  4. trophic
  5. trophallaxis
  6. -trope
  7. trope
  8. -tropal
  9. tropaeolum
  10. tropaeolin
  1. trophoplasm
  2. trophozoite
  3. trophy
  4. -trophy
  5. trophy wife
  6. tropic
  7. tropic bird
  8. -tropic
  9. tropical
  10. tropical continental