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Jacklinlako.urinarysystem.pdf (anatomy of kidney (renal tubule (proximal…
Jacklinlako.urinarysystem.pdf
Functions
Regulation
regulates concentrations in blood of
~Na+, K+, Ca++, Cl-
~ hydrogen ion — ph (not 7-4) in the blood
~ volume of blood — regulate water
Excretion
wastes, mainly nitrogen, foreign substances
~environmental toxins
Filtration
blood is pushed through glomeralus- into capsule space
Resorption
take back substances from tubule --> blood capillaries
Secretion
more substances from blood capillaries --> tubules
anatomy of kidney
renal tubule
proximal convoluted tubule- toisted tubule
nepron loop- peritubular; around or surrounding
nephrons
cortical nephron- 85% are in this type
juxtamedullary nephron-
~near the medulla
~long nephron loop
~possible to concentrate urine by obsorbing water from te urine that is why we have dark urine, sometimes.
nephron- renal; corpuscle and kidney tubule
~structural and functional unit of kidney
minor/major calices- collect urine from tubules
medullary structures- collect urine from tubules
cortical structures- collect urine from tubules
Collecting duct-
~water can still be reobsorbed
~ under the influence of antidiuretic horomone and vasopressin
urethra
male- longer, excretes urine & semen
female- short; only excretes urine