anteroposterior axis
The longitudinal axis, from head to tail.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • anteroposterior — adjective a) Anterior to posterior; front to back anteroposterior movement b) Of or pertaining to the relation between anterior and posterior the anteroposterior axis Syn: AP …   Wiktionary

  • anteroposterior — 1. Relating to both front and rear. 2. In x ray imaging, describing the direction of the beam through the patient (projection) from anterior to posterior, e.g., an A P projection of the abdomen; or the direction of view (A P …   Medical dictionary

  • eje anteroposterior del ojo — Eng. Anteroposterior axis of eye Línea imaginaria que une el vértice corneal y el punto más posterior del globo ocular. Eje geométrico …   Diccionario de oftalmología

  • Anatomical terms of location — Standard anatomical terms of location are employed in science which deal with the anatomy of animals to avoid ambiguities which might otherwise arise. They are not language specific, and thus require no translation. They are universal terms that… …   Wikipedia

  • symmetry — /sim i tree/, n., pl. symmetries. 1. the correspondence in size, form, and arrangement of parts on opposite sides of a plane, line, or point; regularity of form or arrangement in terms of like, reciprocal, or corresponding parts. 2. the proper or …   Universalium

  • Convergent extension — Convergent extension, or Convergence and Extension, is the process by which the tissue of an embryo is restructured to converge (narrow) along one axis and extend (elongate) along a perpendicular axis by cellular movement. An example of this… …   Wikipedia

  • Neural development — comprises the processes that generate, shape, and reshape the nervous system, from the earliest stages of embryogenesis to the final years of life. The study of neural development aims to describe the cellular basis of brain development and to… …   Wikipedia

  • cyclophoria — Abnormal tendency for each eye to rotate around its anteroposterior axis, the rotation being prevented by visual fusional impulses. [cyclo + G. phora, movement] * * * cy·clo·pho·ria fōr ē ə, fȯr n a form of heterophoria in which the vertical… …   Medical dictionary

  • laterotorsion — A twisting to one side; denoting rotation of the eyeball around its anteroposterior axis, so that the top part of the cornea turns away from the sagittal plane. [latero + L. torsio, a twisting] * * * lat·ero·tor·sion (lat″ər o torґsh …   Medical dictionary

  • platymorphia — Having a flat shape; term denoting an eye with a short anteroposterior axis. [platy + G. morphe, shape] * * * platy·mor·phia (plat″ĭ morґfe ə) [platy + morph + ia] having a flat shape; in ophthalmology, a flattened eyeball,… …   Medical dictionary

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