apical plate

: a group of specialized cells of nervous and sensory function at the anterior end of the trochophore larva of certain invertebrates

Useful english dictionary. 2012.

Look at other dictionaries:

  • apical plate — An external sensory organ of a primitive nervous system or cluster of nerve cells at the anterior pole of the body of certain arthropods and annelids …   Dictionary of invertebrate zoology

  • Apical ectodermal ridge — The apical ectodermal ridge (AER) is a critical component in vertebrate limb development.cite journal |author=Zakany J, Zacchetti G, Duboule D |title=Interactions between HOXD and Gli3 genes control the limb apical ectodermal ridge via Fgf10… …   Wikipedia

  • apical fenestration — a condition seen in children, consisting of round or oval openings perforating the cortical plate of bone that overlies part of a pulpless primary tooth; it may involve all the primary teeth but usually affects only the upper primary incisors.… …   Medical dictionary

  • alveolar plate fenestration — apical f …   Medical dictionary

  • umbo — apical portion of either valve or bivalved crustaceans (e.g., Conchostracan, Phyllocarida); in cirripeds, central point on plate from which successive growth increments extend [Moore and McCormick, 1969]. Apical portion of either valve or… …   Crustacea glossary

  • plant development — Introduction       a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… …   Universalium

  • Artery — A vessel that carries blood that is high in oxygen content away from the heart to the farthest reaches of the body. Since blood in arteries is usually full of oxygen, the hemoglobin in the red blood cells is oxygenated. The resultant form of… …   Medical dictionary

  • Neuroepithelial cell — Neuroepithelial Cells are progenitor cells in the nervous system, deriving from stem cells in several different stages of development. They appear during embryonic development of the neural tube as well as in adult neurogenesis in specific areas… …   Wikipedia

  • ear, human — ▪ anatomy Introduction       organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium).  The human ear, like …   Universalium

  • Process — In anatomy, a process is a projection from a structure. The process of the mandible is the part of the lower jaw that projects forward. In a more general sense, a process is a series of actions or events that are part of a system or of a… …   Medical dictionary

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