Excretion System Flashcards
Large Intestine
Removes toxic waste
Liver
1) converts toxins into soluble compounds
2) Destroys old RBC by converting hemoglobin into bile
3) removes nitrogen wastes produces urea
Lungs
Removes CO2
Kidney
1) removes waste such as urea
2) balances blood PH
3) maintains water balance in blood
Cortex - filtration
Medulla- reabsorbtion
Renal pelvis - secretion
Skin
maintains heat by producing sweat
sweat helps to excrete water
Ureter
Brings waste to bladder
Urinary Bladder
Temporary urine storage
Urethra
Brings waste from bladder out of system
Renal Artery
Brings oxygenated blood to kidneys
Efferent Arteriole
Leaves glomerulus takes the blood to the capillary net
Afferent Arteriole
Brings blood to glomerulus from the renal Artery
Renal vein
Brings deoxygenated blood back into the heart
Glomerulus
Ball of capillaries- site of pressure filtration
Bowman s’ Capsule
Surrounds the Glomerulus, fluid from the blood that are to be urine enter the nephron here ( filtration )
Proximal Tubule
( near to Bowman’s capsule)
important for reabsorbtion
Distal Tubule
( distanced from the Bowman’s capsule)
leads to collecting duct
Site of secretion
Collecting Duct
Collects urine from many nephron And empties waste to renal pelvis
Renal Pelvis
Collecting site for all nephron, empties waste out to ureter (secretion)
Nephron
Filters blood makes urine
Deamination
amino acids ( nitrogen and hydrogen ) is removed.
occurs in the liver
used to produce ammonia
urea
a compound of nitrogen that is dissolved in the urine
ADH
Stored in the pituitary gland which releases it into blood
hormone that absorbs water
Aldosterone
Produced in adrenal gland
Conserves sodium
Kidney Dialysis
Cleaning of blood
