DHUB - week 8 Flashcards
(9 cards)
What is the composition of the filtrate in the Bowman’s capsular space?
Capsular space. composed of water, electrolytes and small organic molecules like glucose and waste products
Why don’t plasma proteins pass into the Bowman’s capsular space under normal circumstances?
they are too large to pass through the glomerular filtration barrier
What part of the nephron is involved with obligatory water, ion and organic nutrient reabsorption?
The proximal convoluted tubule (PCT)
An obstruction of a ureter by kidney stone limits the flow of urine between which two points?
Renal pelvis and urinary bladder
What effect does renin have on the glomerular filtration rate (GFR)?
increase the GFR and vasoconstrict the efferent arteriole
The ability to consciously control the micturition reflex depends on the ability to control which muscle?
External urethral sphincter
located within the pelvic floor
(Increased BP to 115mgHg increasing GFR) To maintain GFR do you vasodilate or vasoconstrict the afferent arteriole?
Vasoconstrict - reducing the amount of blood entering the Bowmans capsule
What are the three filtration functions of the urinary system?
Excretion, Elimination, and homeostatic regulation of blood volume and solute concentration
Regulation of blood volume and solute concentration by the urinary system
The urinary system primarily through the kidneys, regulates blood volume and solute concentration by filtering blood, reabsorbing needed substances and excreting waste products in urine. this allows the body to maintain homeostasis by controlling water and electrolyte balance.
