ABDOMINAL ZONES
\abdˈɒmɪnə͡l zˈə͡ʊnz], \abdˈɒmɪnəl zˈəʊnz], \a_b_d_ˈɒ_m_ɪ_n_əl z_ˈəʊ_n_z]\
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Three zones into which the abdomen is divided by horizontal lines at the level of the cartilages of the ninth ribs (subcostal line) and the iliac crests (intertubercular line) respectively; the upper or subcostal zone (regio epigastrica ) is subdivided into the right hypochondriac, epigastric, and left hypochondriac regions; the middle or umbilical zone (regio mesogastrica ) into the right lumbar, umbilical, and left lumbar regions, the lower or hypogastric zone (regio hypogastrica ) into the right iliac or inguinal, the hypogastric or pubic, and the left iliac or inguinal. The boundaries of the several regions differ some what in the old and the new nomenclatures (see the illustrations).
By Stedman, Thomas Lathrop
Word of the day
Arear
- To raise; set up; stir up. Backward; in or to the rear; behindhand. a-r[=e]r', adv. in the rear. [A.S. pfx. a-, on, to, and REAR.]
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