Kidneys Flashcards
What are the three processes involved in urine formation?
Glomerular filtration
Selective re absorption
Tubular Secretion
What are the kidneys responsible for?
Electrolytes, Fluid volume, plasma ph
What are the two different fluid compartments used to distribute water?
Intracellular Fluid
Extra cellular fluid
What controls the thirst mechanism?
Osmoreceptors
What covers each kidney capsule?
Fibrous Inelastic capsule
What are the segments of the nephron?
Proximal tubule
Loop of henle
Distal tubule
Collecting Duct
Where do the collecting ducts from the nephron drain?
Into the renal pelvis
Where is urine formed?
From the blood that enters the glomerular capillaries
Which mechanisms form urine
Filtration
Selective re absorption
Tubular secretion
How much of the plasma that enters the glomerulus under goes the process of filtration?
20 per cent
What does renin do?
It stimulates the hormone Angiotensin
What does Angiotensin do?
It acts as a powerful vasoconstrictor to increase blood pressure
What other hormone does it stimulate
Aldosterone
Where does aldosterone come from?
The adrenal cortex
What is the muscular wall of the bladder called?
The detrusor muscle
