4 quadrants or 9 regions

 

From anatomy viewpoint the urinary bladder belongs to which system? 

• The hypogastric region
• The right upper  region
• The umbilical region 
• The left lower quadrant 

four quadrants 

The left lower quadrant (LLQ) of the human abdomen is the area left of the midline and below the umbilicus. The LLQ includes the left iliac fossa and half of the left flank region. The equivalent term for animals is left posterior quadrant. Important organs here are:

• the descending colon and sigmoid colon
• the left ovary and fallopian tube
• the left ureter

The left upper quadrant (LUQ) extends from the median plane to the left of the patient, and from the umbilical plane to the left ribcage. The equivalent term for animals is left anterior quadrant. Important organs here are:

• Stomach
• Spleen
• Left lobe of liver
• Body of pancreas
• Left kidney and adrenal gland
• Splenic flexure of colon
• Parts of transverse and descending colon

The right upper quadrant (RUQ) extends from the median plane to the right of the patient, and from the umbilical plane to the right ribcage. The equivalent term for animals is right anterior quadrant. Important organs here are:

• Liver
• Gall bladder with biliary tree
• Duodenum
• Head of pancreas
• Right kidney and adrenal gland
• Hepatic flexure of colon

The right lower quadrant (RLQ) extends from the median plane to the right of the patient, and from the umbilical plane to the right inguinal ligament. The equivalent term for animals is right posterior quadrant. Important organs here are:

• Cecum
• Appendix
• Ascending colon
• Right ovary and fallopian tube
• Right ureter

umbilical region the small intestine is located

The left lower quadrant 

abdominal region

pelvic region

right upper region where liver, gall bladder and biliary tree, Duodenum, right kidney, adrenal gland, hepatic flexure of colon is located. 

Regions

Regions of abdomen

Regions shown on left in side-by-side comparison with quadrants

Nine regions of the abdomen can be marked using two horizontal and two vertical dividing lines. The vertical lines are the mid-clavicular lines taken from the mid-point of each clavicle. The upper horizontal line is the subcostal line taken from the inferior parts of the lowest costal cartilages. The lower horizontal line is the transtubercular line connecting the tubercles of the pelvis.^[3][4]

The three main centrally positioned regions are the epigastric region, th