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Regions and Quadrants

The 4 Quadrant Schematic: The intersection of the midsaggittal plane and transverse plane through the navel.

RUQ = Right Upper Quadrant. The right liver, kidney, gallbladder, a bit of the stomach, duodenum, part of pancreas, parts of the ascending and transverse colon, parts of small intestine.

LUQ = Left Upper Quadrant. The left liver, part of stomach, pancreas, left kidney, spleen, parts of transverse and descending colon, part of small intestine.

RLQ = Right Lower Quadrant. Cecum, appendix, part of small intestine, right parts of female reproductive organs, right ureter.

LLQ = Left Lower Quadrant. Small intestine, part of large intestine, left parts of the female reproductive organs, left ureter.

 

The 9 Quadrant Schematic.

RHR = Right Hypogastric Region. Right portions of liver and kidneys; gallbladder; parts of small intestine.

EPR = Epigastric Region. Stomach; part of liver; part of pancreas; part of duodenum; parts of spleen; adrenal glands.

LHR = Left Hypogastric Region. Spleen; left portions of liver; stomach; pancreas; parts of colon.

RLR = Right Lumbar Region. Gall bladder; parts of kidney and liver; ascending colon.

UMR = Umbilical Region. Parts of duodenum, jejunum, ileum; transverse colon; bottom parts of left and right kidney

LLR = Left Lumbar Region. Descending colon; left kidney; part of spleen.

RIR = Right Inguinal Region. Appendix, cecum, right iliac fossa.

HGR = Hypogastric Region. Descending colon, sigmoid colon, right iliac fossa.

LIR = Left Inguinal Region. Bladder, parts of sigmoid colon, anus, reproductive organs.

 

Jenkins, G., & Tortora, G. J. (2012). Anatomy and Physiology: From Science to Life, 3rd Edition International Stu. John Wiley & Sons.

Lumen Learning. (n.d.). Mapping the Body | Boundless Anatomy and Physiology. Retrieved from https://courses.lumenlearning.com/boundless-ap/chapter/mapping-the-body/

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Body Cavity Linings

Membranes line things.

Serous membranes are thin mesothelium (simple squamous epithelial) layers that line cavity walls and the viscera (organs lying in the thoracic and abdominalpelvic cavities).

Parietal layer lines the walls.

Pleural layer covers the organs.

Between the parietal and pleural layer, serous membranes have serous fluid that acts as a lubricant to reduce friction.

Here’s a worksheet below to check off some key words.

Visceral pleura—

Parietal pleura—

Pleural cavity—

Pericardium—

Visceral pericardium—

Parietal pericardium—

Pericardial cavity—

Peritoneum—

Visceral peritoneum—

Pleural peritoneum—

Peritoneal cavity—

Retroperitoneal (and which 3 organs lie in this area)—

 

Jenkins, G., & Tortora, G. J. (2012). Anatomy and Physiology: From Science to Life, 3rd Edition International Stu. John Wiley & Sons.

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Body Cavities

Body cavities help organize, compartmentalize, and protect internal organs.

Here’s a worksheet to help you review.

Cranial cavity—

Vertebral canal—

Thoracic cavity—

Pleural cavity (left and right)—

Pericardial cavity—

Parietal pericardium—

Visceral pericardium—

Parietal pleura—

Visceral pleura—

Mediastinum—

Diaphragm—

Abdominopelvic cavity—

Abdominal cavity—

Pelvic cavity—

 

Jenkins, G., & Tortora, G. J. (2012). Anatomy and Physiology: From Science to Life, 3rd Edition International Stu. John Wiley & Sons.