dorsal lip region

dorsal lip region
1. the mesodermal tissue around the dorsal lip of the blastopore of an amphibian. 2. an analogous region in the human embryo that serves as the organizer which by induction initiates and controls early development.

Medical dictionary. 2011.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • dorsal lip — dor′sal lip′ n. dvl the dorsal marginal region of the blastopore, which acts as a center of differentiation • Etymology: 1935–40 …   From formal English to slang

  • dorsal lip — noun : the margin of the fold of blastula wall that delineates the dorsal limit of the blastopore in the gastrulating amphibian embryo or corresponds to this in other vertebrate embryos and that constitutes the primary organizer, is essential to… …   Useful english dictionary

  • dorsal lip — Embryol. the dorsal marginal region of the blastopore, which acts as a center of differentiation: as cells move through this region to the interior of the embryo during gastrulation, they acquire the ability to induce the overlying ectoderm to… …   Universalium

  • primary organizer — the mesodermal cells of the dorsal lip region of the blastopore in amphibians, or similar region in other vertebrates, which triggers gastrulation …   Medical dictionary

  • Regional specification — In the field of developmental biology, regional specification is the process by which different areas are identified in the development of the early embryo. The process by which the cells become specified differs between organisms. Contents 1… …   Wikipedia

  • animal development — Introduction  the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by …   Universalium

  • organizer — 1. Originally applied to a group of cells on the dorsal lip of the blastopore, which induce differentiation of cells in the embryo and control growth and development of adjacent parts. 2. Any group of cells having such a controlling influence,… …   Medical dictionary

  • TGF beta signaling pathway — The Transforming growth factor beta (TGFβ) signaling pathway is involved in many cellular processes in both the adult organism and the developing embryo including cell growth, cell differentiation, apoptosis, cellular homeostasis and other… …   Wikipedia

  • Spemann&’s organizer — Signalling region located on the dorsal lip of the blastopore in the early embryo, essential for defining the main body axis …   Dictionary of molecular biology

  • mesectoderm — 1. Cells in the area around the dorsal lip of the blastopore where mesoderm and ectoderm undergo a process of separation. 2. That part of the mesenchyme derived from ectoderm, especially from the neural …   Medical dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”