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CELL. A small room in a prison. See Dungeon.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
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The technique was selected depending on the tegmen height, degree of mastoid cell development, and presence or absence of tegmen destruction.
T2W images in coronal plane (A and B) showing mild enlargement of the left mastoid cells and discrete elevation of the left petrous ridge (arrows in A).
The mastoid includes the antrum and mastoid cells. Divisions of the middle ear space using the STAM system is illustrated in Figure 2.
The other theory of development of the mastoid air cell system suggests that the precursors of the mastoid cells are present at birth as periantral, mesenchyme-filled loculi that are visible on histologic sections.