Urinary Session1 Flashcards
(14 cards)
4 functions of the kidney
Vol control
osmolarity control
pH control
Excrete some waste products
Position of the kidneys
Retroperitoneal, either side of abdominal cavity at T12 to L3
Right lower than left due to liver
mobility of 3cm when breathing
Position of Bladder
Behind the pubic bone
Position of Prostate
Directly below bladder, the urethra passes through it
Route of ureters
From renal pelvis, descend in front of psoas major, cross the pelvis brim near bifurcation of iliac arteries and under the uterine artery down the pelvic sidewall to the posterior surface of the bladder
Bony landmarks of ureters passage
Begin at L2, descend in front of lumbar spine transverse processes
Cross into pelvic brim in front of sacroiliac joint
Enter bladder at level of iliac spine
Most likely positions for arise of a kidney stone in the ureter
Junction of renal pelvis to ureter
ureter crosses the brim of the pelvis
ureter passes into there wall of the bladder
What surrounds the kidney?
Fibrous capsule
What is contained in the renal cortex?
Glomerulus, Bowmans capsule and renal tubules (apart from loop of Henele)
Describe and What is contained in the renal medulla
Loop of Henle, Collecting ducts as medulla is hypertonic
it is split into pyramids, these empty urine into the minor calyxes via papilla, these form major calyxes
Renal blood flow
Renal artery from aorta at L2,
Segmental, Interlobar, arcuate, interlobular, afferent arterioles, glomerulus, efferent arterioles
Metabolic demand from CO at rest of kidneys
25%
Role of Proximal convoluted tubule
Major site of reabsorption (Na, water, K, bicarbonate, glucose, AA)
Role of distant convoluted tubule
major site of reabsorption of electrolytes and water, (fluid from loop of hence is still hypotonic)
