What are the anatomical regions and quadrants of the abdomen? Written by Olutayo A. Sogunro, DO. Edited by Shelley Jacobs, PhD. The nine anatomical regions of the abdomen From superior to inferior, the abdomen is divided into nine regions: Epigastric Umbilical Hypogastric e. Midline anatomical regions: epigastric, umbilical, and hypogastric There are three anatomical regions in the midline of the abdomen.
Bilateral anatomical regions: hypochondriac, lumbar, and iliac Each bilateral anatomical region has an associated right and left side. The four quadrants of the abdomen The abdomen can also be divided into four quadrants, known as the right upper, the left upper, the right lower, and the left lower quadrants. The two planes of the abdomen The four quadrants of the abdominal wall are used for general clinical descriptions. Organs in the nine regions of the abdomen It is important to know the anatomical regions and quadrants of the abdomen to correlate the pain to the organs contained in each area.
Recommended reading. The OMGE acute abdominal pain survey. Progress report, Scand J Gastroenterol Suppl. Cultural and clinical issues in the care of Asian patients. Cleve Clin J Med. In: Cultural Competence in Health Care. Boston: Springer. Such a finding could indicate a diagnosis of appendicitis, because the appendix is located in that quadrant.
Pain in another quadrant, such as the LLQ, would indicate a different diagnosis. As with quadrants, body region designation is also used to describe the location of internal organs and the origin of pain. Review Figure Abdominopelvic quadrants and regions B Nine regions of the abdomen showing superficial organs.
Pain in this area could be symptomatic of many abnormal conditions, including indigestion or heart attack. The lumbar regions consist of the middle right and middle left regions, located near the waistline of the body. This region contains the large intestine colon , which is involved in the removal of solid waste from the body.
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All Practice Tests. Job Recommendation Latest. Jobs in Meghalaya Jobs in Shillong. It also contains the transverse colon the section between the ascending and descending colons and the bottom portions of both the left and right kidney.
The right iliac region contains the appendix, cecum, and the right iliac fossa. It is also commonly referred to as the right inguinal region. Pain in this area is generally associated with appendicitis.
The left illiac region contains part of the descending colon, the sigmoid colon, and the left illiac fossa. It is also commonly called the left inguinal region.
The hypogastric region below the stomach contains the organs around the pubic bone. These include bladder, part of the sigmoid colon, the anus, and many organs of the reproductive system, such as the uterus and ovaries in females and the prostate in males. Learning Objectives Distinguish among the abdominopelvic regions of the body. Key Points The abdominopelvic cavity can be subdivided into four quadrants and nine areas.
The quadrants are labeled by location: the right upper, right lower, left upper, and left lower quadrants. The nine regions are smaller than the four abdominopelvic quadrants and include the right hypochondriac, right lumbar, right illiac, epigastric, umbilical, hypogastric or pubic , left hypochondriac, left lumbar, and left illiac divisions.
The perineum is sometimes considered to be the tenth division. The purpose of the abdominal divisions is to describe regional anatomy in the abdomen, and to help clinicians determine which organ and tissues are involved in a disease based on which regions experience pain. Key Terms left upper quadrant : The left upper quadrant is the location of the left portion of the liver, the larger portion of the stomach, the pancreas, left kidney, spleen, portions of the transverse and descending colon, and parts of the small intestine.
Right upper quadrant : The right upper quadrant contains the right portion of the liver, gallbladder, right kidney, a small portion of the stomach, portions of the ascending and transverse colon, and parts of the small intestine. Abdominal Four Quadrants The abdominopelvic region can be divided into four quadrants.
Right Upper Quadrant The right upper quadrant contains the right portion of the liver, the gallbladder, right kidney, a small portion of the stomach, the duodenum, the head of the pancreas, portions of the ascending and transverse colon, and parts of small intestine. Left Upper Quadrant The left upper quadrant is the location of the left portion of the liver, part of the stomach, the pancreas, left kidney, spleen, portions of the transverse and descending colon, and parts of the small intestine.
Right Lower Quadrant In the right lower quadrant sits the cecum, appendix, part of the small intestines, the right half of the female reproductive system, and the right ureter. Left Lower Quadrant The left lower quadrant houses the majority of the small intestine, some of the large intestine, the left half of the female reproductive system, and the left ureter.
Abdominal Nine Divisions The nine divisions of the abdominopelvic region are smaller than the four quadrants, allowing for a more detailed discussion. Right Hypochondriac The right hypochondriac region contains the right portion of the liver, the gallbladder, the right kidney, and parts of the small intestine.
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