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urinary system 1

QuestionAnswer
organs or urinary system kidneys, ureters, bladder, urethra, retroperitoneal position
kidney structure cortex, medulla, pyramids, calyces, renal pelvis
the nephron renal corpuscle, PCT, loop of Henle, DCT, JGA
urine formation steps filtration, reabsorption, secretion, GFR; ADH ; aldosterone
regulation autoregulation, SNS, RAAS, ANP
kidney shape bean shaped, 10cm long
kidney location retroperitoneal position against posterior abdominal wall T12-L3
renal cortex outer layer of kidney
renal pyramids triangular divisions of kidney
renal medulla inner layer of kidney
renal papilla narrow innermost end of pyramid
renal pelvis expansion of upper ureter inside kidney
hilum medial concave notch on kidney, enter/exit for renal artery, vein, ureter, nerves, lymphatics
ureters 25-30 mins long and carries urine from renal pelvis to urinary bladder via peristaltic contractions
3 narrow points on ureters ureteropelvic junction, pelvic brim crossing, ureterovesical junction
urinary bladder hollow, collapsible muscular organ; retroperitoneal in pelvic cavity
rugae (mucosal folds) allow expansion; capacity 500-600ml
trigone triangular smooth region at base
urinary bladder wall transitional epithelium (urothelium) and 3 layers of smooth muscle
3 layers of smooth muscle in urinary bladder wall detrusor muscle
Created by: b.marshall
 

 



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