control concentration of water in blood, remove urea from blood, keep blood at right pH, control concentration of salts in blood
renin
emzyme to help regulate blood volume
when kidneys secrete renin
blood vessels contract raising blood pressure and increasing amount of sodium absorbed into blood
renal artery
carries oxygenated blood to the kidney
renal vein
carries deoxygenated blood away from the kidney
proximal convoluted tubule
60 to 70 urine filtrate GLUCOSE SALT WATER AMINO ACID reabsorbed back into blood capillaires Also glucose reabsorbed through active transport
glomerulus
ball of capillaries carrying high pressure blood enclosed by Bowman's capsule
3 regions of renal tube
proximal convoluted tubule, loop of henle, distal convoluted tubule
loop of henle
originally isotonic When sodium is pumped into the blood water gets reabsorbed to keep the outside isotonic to loop of henle IMPORTANT FOR HELPING TO CONCENTRATE URINE
distal convoluted tubule
majority of the water here
collecting ducts
reabsorption complete
activity of kidney depends on blood concentration
glands release hormones to control kidney function
kidney stones
mineral crystals in kidney become harmful because they block ureter. Broken up by sound waves
kidney damage
caused by high blood pressure and diabetes and damages delicate tubes of the nephron
kidney failure
kidneys no longer clean the blood which interrupts homeostasis Need dialysis or transplant
urethra
carries urine from bladder to outside of body
medulla
inner region of kidney
sphincter
muscle that opens to allow urine to be removed from the bladder
cortex
outer region of kidney
renal pelvis
collects urine before it passes down the ureter
capsule
tough fibrous coat around the kidney
bladder
stores urine before it is removed from the body
ureter
tube that carries urine away from the kidney
kidney
converts blood 2 urine
bowman's capsule
cup shaped structure through which the fluid part of the blood is filtered
urine number
95 water
DCT and collecting ducts
relatively impermeable to water in the absence of ADH
decrease in blood pressure
stimulates kidneys to produce renin
urine density
1point001 to 1point035
organs of excretory system
skin lungs liver urinary system
skin
excretes water salts urea
lungs
release CO2
liver
convert toxic ammonia to urea
kidney's function
control concentration of water in blood, remove urea from blood, keep blood at right pH, control concentration of salts in blood
renin
emzyme to help regulate blood volume
when kidneys secrete renin
blood vessels contract raising blood pressure and increasing amount of sodium absorbed into blood
renal artery
carries oxygenated blood to the kidney
renal vein
carries deoxygenated blood away from the kidney
proximal convoluted tubule
60 to 70 urine filtrate GLUCOSE SALT WATER AMINO ACID reabsorbed back into blood capillaires Also glucose reabsorbed through active transport
glomerulus
ball of capillaries carrying high pressure blood enclosed by Bowman's capsule
3 regions of renal tube
proximal convoluted tubule, loop of henle, distal convoluted tubule
loop of henle
originally isotonic When sodium is pumped into the blood water gets reabsorbed to keep the outside isotonic to loop of henle IMPORTANT FOR HELPING TO CONCENTRATE URINE
distal convoluted tubule
majority of the water here
collecting ducts
reabsorption complete
activity of kidney depends on blood concentration
glands release hormones to control kidney function
kidney stones
mineral crystals in kidney become harmful because they block ureter. Broken up by sound waves
kidney damage
caused by high blood pressure and diabetes and damages delicate tubes of the nephron
kidney failure
kidneys no longer clean the blood which interrupts homeostasis Need dialysis or transplant
urethra
carries urine from bladder to outside of body
medulla
inner region of kidney
sphincter
muscle that opens to allow urine to be removed from the bladder
cortex
outer region of kidney
renal pelvis
collects urine before it passes down the ureter
capsule
tough fibrous coat around the kidney
bladder
stores urine before it is removed from the body
ureter
tube that carries urine away from the kidney
kidney
converts blood 2 urine
bowman's capsule
cup shaped structure through which the fluid part of the blood is filtered
urine number
95 water
DCT and collecting ducts
relatively impermeable to water in the absence of ADH
Flash Cards
