9.7: reabsorption and secretion

what is blood?

fluid in blood vessels

what is filtrate?

fluid in the capsular space (renal corpuscle)

what is tubular fluid?

fluid in the renal tubule

what is filtration?

the process of material leaving the glomerulus and entering capsular space

where does reabsorption and secretion occur?

tubular space/renal tubule

what gets edited before becoming urine?

tubular fluid

what is reabsorption?

movement of substances out of the nephron

what is taken out of the nephron during reabsorption?

water, ions, organic nutrients

where do substances from reabsorption go?

diffused into peritubular capillaries

what is secretion?

movement of substances into the nephron

what substances get moved into the nephron during secretion?

ions, toxins, drugs

where do substances come from during secretion?

peritubular capillaries

what does urine volume depend on?

glomerular filtration rate and reabsorption and secretion

what does glomerular filtration rate depend on?

blood pressure

what does ADH stand for?

antidiuretic hormone

what does ADH do?

increases water reabsorption in the renal tubule

what does -ADH mean?

more urine

what does +ADH mean?

less urine

what produces ADH?

hypothalamus

what releases ADH?

posterior pituitary

what is the purpose of ADH?

go against diuresis

what is diuresis?

removal of water