Fluid Balance Flashcards
Kidneys Maintaining Fluid Balance
by regulating the amount of make-up of the fluids inside and around the cells
Kidneys Maintaining Fluid Balance Cont.
kidneys maintaining the volume and composition of extracellular and to a lesser extent, intercellular fluid by continuously exchanging water and solutes like hydrogen, sodium, potassium, chloride, bicarbonate, sulfate, and phosphate ions, across their cell membrane
Kidney’s Role in Fluid Balance
controlled by hormones
two hormones involved
Antidiuretic hormone (ADH)
-produced by the pituitary gland
-if ADH is high causes more water to be absorbed creating a high concentration but small volume of urine
-if ADH is low it causes more water to be excreted creating a larger volume of urine
-less molecules more fluids
Aldosterone
-produced by the adrenal gland
-regulates water reabsorption and changes urine concentration by increasing sodium reabsorption
-helps control of secretion of potassium
-helps control fluids in and around the cells