Posterior Abdonminal Wall, Kidney (Lecture) Flashcards
What are the 4 muscles of the posterior abdominal wall?
- Psoas major
- Iliacus
- Quadratus lumborum
- Diaphragm
What muscles pass through an arcuate ligament of the diaphragm?
- Quadratus Lumborum - LATERAL arcuate ligament
2. Psoas Major - MEDIAL arcuate ligament
What ligament of the diaphragm forms the aortic hiatus?
- median arcuate ligament
T or F: quadratus lumborum is a postural muscle for the lower trunk.
True
What forms the roof of the abdominal cavity?
Central tendon of the diaphragm
Where does the lumbar portion of the diaphragm attach?
- Transverse processes of L1
- Tip of the 12th rib
What produces a gap in the diaphragm that allows the aorta through?
The left and right crus
What fills in the gap in the lumbar region of the diaphragm?
the lateral arcuate ligament
What muscle fibers span the aortic hiatus anterior to the aorta?
Median arcuate ligament
T or F: the pyloric plane passes through the hilum of each kidney.
TRUE
Which kidney is more inferior?
Right kidney
What structures protect the kidney?
- lower ribs
- strong renal fascia
- fat on both sides of the renal fascia
What structures supply oxygenated and deoxygenated blood to the kidney’s?
R and L renal a. and v.
- Renal a. comes from aorta
- Renal v. drains to the IVC
What is the name of the fat on the interior of the renal fascia?
Perirenal Fat
What is the name of the fat on the outside of the renal fascia?
Pararenal Fat
What part of the diaphragm does quadratus lumber pass deep to?
Lateral Arcuate ligament
What passes deep to the medial arcuate ligament of the diaphragm?
- Psoas Major and CHAIN GANGLION
What passes deep to the median arcuate ligament of the diaphragm?
Aorta and vagus n.
What happens to the central tendon when the fibers of the diaphragm contract?
it gets pulled down
Where does blood supply for the adrenal come from and what supplies these branches?
- Right Superior Suprarenal a. => Inferior Phrenic a.
- Right middle suprarenal a. => Aorta
- Right inferior suprarenal a. => Renal a.
What is the relationship of arteries to veins as they enter the renal hilum?
Veins anterior to Arteries
Starting with peritoneum, what layers would you have to cut through to access the kidney?
Anterior —> Posterior
- Peritoneum
- Fat
- Renal facia (continuation of transversalis fascia)
- Perirenal Fat
What layers would be punctured if taking a renal biopsy from the back?
Superficial —> Deep
- Skin
- Erector Spinae
- Quadratus Lumborum
- Endoabdominal (transversalis) facia
- PARA RENAL FAT
- RENAL FASCIA
- PERIRENAL FAT
- kidney
T or F: the adrenal glands can be found within the renal fascia
True
