Organs In The Abdominopelvic Regions

1.4F: Abdominopelvic Regions

Terminal updated
Save as PDF

Folio ID: 7291

The belly is subdivided into four quadrants and nine areas.

Learning Objectives

Distinguish amid the abdominopelvic regions of the body

Cardinal 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 10th partition.
The purpose of the intestinal divisions is to describe regional anatomy in the belly, and to help clinicians make up one's mind which organ and tissues are involved in a disease based on which regions experience pain.

Fundamental 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 modest intestine.
Right upper quadrant: The correct upper quadrant contains the right portion of the liver, gallbladder, right kidney, a pocket-size portion of the stomach, portions of the ascending and transverse colon, and parts of the small-scale intestine.
left lower quadrant: The left lower quadrant houses the majority of the small intestine, some of the big intestine, the left female reproductive organs, and the left ureter.
ix divisions: An alternate organisation for dividing the abdominopelvic cavity into regions.
right lower quadrant: In the right lower quadrant sits the cecum, appendix, function of the small intestines, the right female person reproductive organs, and the right ureter.

Anatomists and medical personnel split the abdominopelvic cavity into smaller regions to facilitate study and word. These divisions are often used to categorize the individual abdominal organs by their location and function and are used by clinicians to assistance diagnose the source of abdominal pain and make up one's mind advisable treatment. The most common divisions for the abdominopelvic region are the four quadrants and nine regions.

This image illustrates the organs included in the four quadrants and nine regions as described above.

Intestinal nine divisions (a) and quadrant regions (b): The abdomen is subdivided into four quadrants and nine areas.

Abdominal Four Quadrants

The abdominopelvic region can be divided into four quadrants. These quadrants are divers past the intersection of the sagittal plane with the umbilical plane (the transverse plane through the umbilicus). Clinicians use these regions to determine the organs and tissues that may be causing pain or discomfort in that region.

Correct Upper Quadrant

The right upper quadrant contains the right portion of the liver, the gallbladder, right kidney, a minor portion of the tummy, the duodenum, the head of the pancreas, portions of the ascending and transverse colon, and parts of small intestine. Pain in this region is associated with infection and inflammation in the gallbladder and liver or peptic ulcers in the stomach.

Left Upper Quadrant

The left upper quadrant is the location of the left portion of the liver, function of the stomach, the pancreas, left kidney, spleen, portions of the transverse and descending colon, and parts of the small intestine. Pain in this region is associated with malrotation of the intestine and colon.

Right Lower Quadrant

In the right lower quadrant sits the cecum, appendix, part of the minor intestines, the right half of the female reproductive system, and the right ureter. Hurting in this region is most commonly associated with appendicitis.

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 person reproductive system, and the left ureter. Hurting in this region is generally associated with colitis (inflammation of the large intestine) likewise as pelvic inflammatory disease and ovarian cysts in females.

Abdominal Ix Divisions

The nine divisions of the abdominopelvic region are smaller than the four quadrants, allowing for a more detailed discussion. These divisions are marked by two parasagittal and two transverse planes centered effectually the navel. Virtually organs are function of multiple regions, including the gallbladder, duodenum, stomach, kidneys, spleen, small intestine and colon. The perineum (the surface area below the hypogastric region at the bottom of the pelvic cavity) is sometimes considered to be a tenth partition in this system.

Correct Hypochondriac

The right hypochondriac region contains the right portion of the liver, the gallbladder, the right kidney, and parts of the small intestine.

Left Hypochondriac

The left hypochondriac region contains part of the spleen, the left kidney, part of the stomach, the pancreas, and parts of the colon.

Epigastric

The epigastric (higher up breadbasket) region contains the bulk of the stomach, role of the liver, part of the pancreas, office of the duodenum, role of the spleen, and the adrenal glands. This region pushes out when the diaphragm contracts during breathing.

Right Lumbar

The right lumbar region consists of the gallbladder, the right kidney, part of the liver, and the ascending colon.

Left Lumbar

The left lumbar region consists of the descending colon, the left kidney, and function of the spleen.

Umbilical

The umbilical region contains the navel (bellybutton), and many parts of the small intestine, such every bit part of the duodenum, the jejunum, and the illeum. Information technology also contains the transverse colon (the section betwixt the ascending and descending colons) and the bottom portions of both the left and right kidney.

Right Iliac

The right iliac region contains the appendix, cecum, and the right iliac fossa. It is as well commonly referred to every bit the right inguinal region. Pain in this surface area is generally associated with appendicitis.

Left Iliac

The left illiac region contains part of the descending colon, the sigmoid colon, and the left illiac fossa. It is also unremarkably called the left inguinal region.

Hypogastric

The hypogastric region (below the stomach) contains the organs around the pubic os. These include bladder, role of the sigmoid colon, the anus, and many organs of the reproductive system, such equally the uterus and ovaries in females and the prostate in males.