Retroperitoneal Organs of PAW Flashcards
The retroperitoneum
Contents of the Retroperitoneum abbreviation
PEAR DUCKS
Contents of the Retroperitoneum: PEAR DUCKS:
- Pancreas
- Oesophagus
- Aorta & IVC
- Rectum
- Duodenum
- Ureter
- Colon
- Kidneys
- Suprarenal glands
Contents of the Retroperitoneum
The kidneys lie in the
Paravertebral gutter formed by the angle (renal angle) between erector spinal and the quadratic lumborum muscles (psoasmuscles too)
Which parts of the large intestine are NOT retroperitoneal?
- transverse colon is intraperitoneal
- sigmoid colon is intraperitoneal
Kidney basics structure
Order of structures at the Hilum of kidney anterior to posterior
Renal vein, renal artery, ureter
VAU
Kidney function abbreviation
A WET BED
Kidney function: A WET BED:
I
Kidney structure
Renal pyramids ending in papilla, where collecting ducts of nephrons emerge
Minor Calyces (8-10) joint to form major calyces (4-6)
Renal sinus contains fat
Transpyloric plane
Through the lower order of L1 vertebra Posteriorly and across 9th CC anteriorly
Calyx is
Collecting duct
A kidney will typically have how many major calyces?
4-6
Renal columns are
Extensions of cortex between medulla
Which kidneys lies lower and why?
Right lies lower than left due to the presence of the liver
Anterior Relationships of the Right Kidney:
Anterior:
Medial:
Superior:
Posterior:
- anterior: hepatic flexure of colon, liver
- medial aspect of kidney: 2nd duodenum
- superior: adrenal gland
- posterior: diaphragm, adrenal gland???
What is the problem with using the umbilicus as a surface marking?
Not in a fixed position
Variable
Anterior Relationships of Left Kidney:
Anterior: splenic flexure of Large bowel
Pancreas tail over upper pole and Hilum
Left suprarenal gland lies on top
Spleen is anterior and superior
Kidneys posterior relationships
Posterior Relationships of the Left Kidney:
Left kidney sits on top of iliohypogastric nerve and ilioinguinal nerve
Psoas muscle lies on top of left kidney
Quadratus Lumborum lies on top of Psoas
Kidneys anterior relationships
Kidneys posterior relationships
Insert diagram
Upper pole and lower pole of kidney to midline distance
Upper Pole: 5cm
Lower Pole: 15cm
Kidney: Fascia and Coverings:
- renal fascia envelops kidney and adrenal gland
- perinephric fat is loose fatty i tissue inside renal fascia
- paranephric fat is OUTSIDE gerotas fascia
If a surgeon approaches a kidney Posteriorly, what must be cut through T to reach blood vessels?
Renal fascia (Gerota’s fascia) and perinephric fat
The left renal vein is located under which artery?
The superior mesenteric artery
Aorta anteriorly 3 branches are
Coeliac trunk
Superior mesenteric artery
Inferior mesenteric artery
Renal arteries arise from
The lateral border of the aorta