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Blood Flow Through the Kidneys
Renal Aretey---> Segmental Arteries-------> Interlobar Arteries --------> Arcuate Arteries -------> Interlobular Arteries---------> Afferent Arteriole------> Glomerular Capillaries------> Efferent Arterioles -------> Peritubular Capillaries-------> Interlobular Veins------> Arcuate Veins-----> Interlobar Veins----> Renal Vein
Three Main Regions of the Kidney
-Renal cortex-a smooth area/most superficial region
-Renal pyramids-located in the medulla and has cone shaped pyramids that have extensions of the cortex (the base of each pyramid faces the cortex)
-Renal papilla-is the apex that is pointed towards the renal sinus
Urine Formation and Flow
Glomerulus----> Capsular space---> Proximal convoluted tubule---> descending loop----> ascending loop---> distal convoluted tubule---> Collecting duct----> papillary duct------> renal papilla-----> minor calyce----> major calyce----> renal pelvis-----> urethra-----> external urethral orifice
Vertical fissure in concave surface of kidney through which blood vessels and ureters pass
Dense irregular connective tissue that covers the adipose capsule and attaches the kidney to the abdominal wall
Space within kidney that is adjacent to renal medulla, contains calyces and renal pelvis
Cup-like structure that is located in renal sinus that receives urine from openings of papillary ducts
External Urethral Sphincter
Voluntary skeletal muscle in urogenital diaphragm that allows passage of urine to exterior
Internal Urethral Sphincter
Circular smooth muscle that involuntarily controls passage of urine from the urinary bladder to the urethra
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