Polar cells

Polar Cell are part of a three cell movement involving Hadley Cells and Ferrel Cells which show atmospheric circulation and Surface winds.

Cold dense air descends over the Poles which creates high pressure, this cold air moves along the surface to lower latitudes. At around 60 degrees north and south, this air has been warmed up and rises upwards, creating a zone of low pressure.

"See also" Polar vortex

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  • polar cells — polar bodies (def. 1) …   Medical dictionary

  • Polar auxin transport — is the regulated transport of the plant hormone, auxin, in plants.It is suggested that it involves the components of the cytoskeleton, plasma membrane, and cell wall. [http://www.plantphys.net/chapter.php?ch=19 Exploring the Cellular Basis of… …   Wikipedia

  • polar body — n a cell that separates from an oocyte during meiosis: a) one containing a nucleus produced in the first meiotic division called also first polar body b) one containing a nucleus produced in the second meiotic division called also second polar… …   Medical dictionary

  • polar cell — polar body or polar cell, Biology. one of the tiny cells that arise by a very unequal meiotic division of the ovum at or near the time of fertilization …   Useful english dictionary

  • Polar body — A polar body is a cell structure found inside an ovum. Both animal and plant ova possess it. Asymmetrical cell division (cytokinesis) leads to the production of polar bodies during oogenesis. To conserve nutrients, the majority of cytoplasm is… …   Wikipedia

  • Polar membrane — In the scientific literature polar membrane has acquired two separate meanings.1) A lipid biomembrane expressing polarity in the electrical sense. Such membranes can be manipulated chemically and their electrical properties can be studied by… …   Wikipedia

  • polar lobe — In some molluscs a polar lobe appears as a clear protrusion close to the vegetal pole of the cell prior to the first cleavage, and becomes associated with only one of the daughter cells. Removal of the first polar lobe, or of any polar lobe that… …   Dictionary of molecular biology

  • polar bodies — 1. small nonfunctional cells with a haploid chromosome complement, consisting of a small amount of cytoplasm and a nucleus, resulting from unequal division of the primary oocyte (first polar b.) and, if fertilization occurs, of the secondary… …   Medical dictionary

  • polar — 1. Relating to a pole. 2. Having poles, said of certain nerve cells having one or more processes. [Mod. L. polaris, fr. polus, pole] * * * po·lar pō lər adj 1) of or relating to one or more poles (as of a spherical body) 2) exhibiting polarity… …   Medical dictionary

  • polar cap — (MESOZOA) The eight anterior cells in the nematogen …   Dictionary of invertebrate zoology

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