Circulation Cells: Large areas of air movement created by the rotation of the earth and the transfer of heat from the equator toward the poles. Circulation is confined to a specific region, such as the tropics, temperate, or polar, that influences the type of weather prevailing there.

 

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Circulation Cells: Large areas of air movement created by the rotation of the earth and the transfer of heat from the equator toward the poles. Circulation is confined to a specific region, such as the tropics . . . View Full Definition

Plasma Cells: Cells produced from B cells that synthesize and release antibodies.

Schwann Cells: Specialized glial cells that form the myelin sheath that coats many axons. Cells surrounding the axons of some neurons, thus forming the myelin sheath.

Net Monthly Circulation: The number of unique Web users in the panel that visited the site over the course of the reporting period, expressed as a percentage of the in-tab.

Lymphatic Circulation: A secondary circulatory system that collects fiuids from between the cells and returns it to the main circulatory system; the circulation of the lymphatic system, which is part of the immune system.

Mast Cells: Cells that synthesize and release histamine, as during an allergic response; found most often in connective tissue surrounding blood vessels.

Sieve Cells: Conducting cells in the phloem of vascular plants. See sieve elements

Stem Cells: Cells in bone marrow that produce lymphocytes by mitotic division.

Thermohaline Circulation: Movement of seawater that is controlled by density differences that are largely explained in terms of temperature and salinity

Walker Circulation: A deep east-west overturning in the atmosphere normally confined to within about 20 degrees latitude of the equator extending from low-levels to near the tropopause.