Kidney (23) Flashcards
Anatomical relationships
Paired bean-shaped organs located in the UL and UR quadrants of posterior abdominal wall
Extent of the kidneys is from the T12 to L3 vertebral levels- R kidney residing slightly lower than left due to liver
Retroperitoneal
Develops and remain outside (posterior) to the peritoneal cavity
Associated with __________ glands on superior poles
Suprarenal
Posteriorly associated with the
diaphragm, quadrates lumborum, poses major, transverses abdomens mm. and ribs 11 (R kidney) and 11-12 (L kidney)
External morphology - smooth external surface covered by a
renal capsule
External to the renal capsule is a layer of
perirenal fat surrounded by renal fascia
Medial margin contains the hilum-
a deep vertical slit through which the nerovasculature, RENAL AA and VV, lymphatics and ultimately the ureter pass to/from
Internal morphology - Renal cortex
Layer between renal capsule and medulla
SITE OF FILTRATION
Internal morphology- Renal columns
extensions of renal cortex that project inward between medullary segments
Internal morphology- Renal medulla
inner layer consisting of discontinuous aggregates of triangular shaped tissue known as renal pyramids with apex inward
Internal morphology- Renal papilla
Apex of renal pyramid opening into the urine collecting system
Internal morphology- Minor calyx
proximal part of urine connection system responsible for draining one renal papilla
Internal morphology- Major calyx
receives urine from several minor calices
Internal morphology- Renal Pelvis
receives urine from major calices leading to the ureter
Renal AA.
Off abdominal aorta around L1-L2 level
R. Renal a. longer than left and passes posterior to IVC
- at hilum typically divide in segmental branches
