Excretion Flashcards
What is Urea?
Excess Amino acids formed in the liver
Carbon dioxide is excreted through the…
Lungs
What do the kidneys excrete?
Urea, excess water and salts
Pale yellow urine=
More volume of water in the urine
Dark yellow urine=
More concentrated urine
The higher the temperature…
smaller quantity of concentrated urine produced
The more exercise done…
smaller quantity of concentrated urine produced
What is the Ureter?
a tube that carries urine from the kidney to the urinary bladder
what is the bladder?
the organ where urine is stored
What is the urethra?
a tube that allows urine out of the body
What is Assimilation?
the movement of digested food molecules into cells where they are used
what is Deamination?
the removal of the nitrogen part of amino acids, to form urea
what is the renal cortex?
the outer portion of the kidney where ultrafiltration occurs
what is the renal medulla?
the innermost part of the kidney where the reabsorption of water occurs
what are kidney tubules?
small tubes in the kidney that contain cells that filter and clean the blood
what is the Glomerulus?
a bundle of blood capillaries that filter the water, glucose, urea and salts from the blood
what is Bowman’s capsule?
part of the nephron that surrounds the glomerulus, carries out ultrafiltration of water
a nephron is..
a unit of the kidneys that regulates water and soluble substances by filtration, reabsorption and excretion
what is the role of the tubule?
the reabsorption of all of all glucose, most water and
some salts back into the blood, (leading to
the concentration of urea in the urine as well
as loss of excess water and salts)
Good things about kidney transplant?
- better long term solutions
- much more freedom
- les restrictive diets
bad things about kidney transplant?
- hard to find a donor
- body might reject the new kidney
good things about dialysis?
- effective
- doesnt require finding a donor
bad things about dialysis?
- very expensive
- less freedom
- restrictive diet
