Body Regions

For orientation, the abdomen can be divided by imaginary lines into nine regions, which are shown in Figure 5-4. The sections down the midline are the:

• epigastric (ep-i-GAS-trik) region, located above the stomach

• umbilical (um-BIL-i-kal) region, named for the umbilicus, or navel

• hypogastric (hi -po -GAS-trik) region, located below the stomach The lateral regions are the: _ _ _

• right and left hypochondriac (hi -po-KON-dre-ak) regions, named for their position near the ribs, specifically near the cartilages (root chondr/o) of the ribs,

• right and left lumbar (LUM-bar) regions, which are located near the small of the back (lumbar region of the spine) _

• right and left iliac (IL-e-ak) regions, named for the upper bone of the hip, the ilium. These regions are also called the inguinal (ING-gwi-nal) regions, with reference to the groin.

What Located Left Iliac Region

Right iliac region rX^riZh

Right

Umbilical

Left

lumbar

lumbar

region

region

region

Hypogastric region

Left iliac region rX^riZh

FIGURE 5-4. The nine regions of the abdomen. (Reprinted with permission from Cohen BJ, Wood DL. Memmler's The Human Body in Health and Disease. 9th Ed. Philadelphia: Lippincott Williams & Wilkins, 2000.)

More simply, but less precisely, the abdomen can be divided by a single vertical line and a single horizontal line into four sections (Fig. 5-5), designated the right upper quadrant (RUQ), left upper quadrant (LUQ), right lower quadrant (RLQ), and left lower quadrant (LLQ).

Additional terms for body regions are shown in Figures 5-6 and 5-7. You may need to refer to these illustrations as you work through the book.

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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Responses

  • frances
    What is located in left iliac region?
    8 years ago
  • Marco
    Which body region is located directly below the hypochondriac region?
    8 years ago
  • sinikka
    Where is the chondr located on the body?
    7 years ago

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