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Hbio-Urinary system
Term 2 exam revision
| Question | Answer |
|---|---|
| TRANSPORT EPITHELIUM [first skin] | regulate solute [a solution = solute + solvent] reabsorbed |
| NITROGENOUS WASTES | protein ammonia urea urine = pee UREA |
| URIC ACID | An insoluble precipitate of nitrogenous waste causing goute |
| FILTRATION | filters by water being squeezed out of the blood in the glomerulus, from the blood by the nephrons |
| FILTRATE | Fluid extracted produces urine |
| SELECTIVE REABSORPTION | The selective uptake of solvent [water] solutes from tubule eg glucose, salt |
| EXCRETION | The giving off of nitrogen-containing waste products of metabolism |
| RENAL ARTERY | The blood vessel bringing blood to the kidney |
| RENAL VEIN [drain] | The blood vessel draining the kidney |
| URETER | tube leading from the kidney to the urinary bladder |
| URINARY BLADDER | Bag where urine is stored prior to elimination |
| URETHRA | A tube that releases urine from the body |
| RENAL CORTEX | The outer portion of the vertebrate kidney |
| RENAL MEDULLA | The inner portion of the vertebrate kidney, beneath the renal cortex |
| NEPHRON | The tubular excretory unit of the vertebrate kidney |
| DESCENDING AND ASCENDING LIMB OF THE LOOP OF HENLE | The long hairpin turn, with a descending and ascending limb, of the renal tubule in the vertebrate kidney; functions in water and salt reabsorption |
| COLLECTING DUCT | where filtrate from renal tubules is collected; the filtrate is now called urine |
| RENAL PELVIS | Funnel-shaped chamber that receives processed filtrate from the collecting ducts and is drained by the ureter |
| excellence CORTICAL NEPHRONS | Nephrons located almost entirely in the renal cortex |
| These nephrons have a reduced loop of Henle | |
| JUXTAMEDULLARY NEPHRONS | Nephrons with well-developed loops of Henle that extend deeply into the renal medulla |