Flashcards in EXCRETION Deck (24)
the excretory tubules collects as filtrate from the blood.
-taken into tubules as filtrate
the transport epithelium reclaims needed substances from the filtrate where they return to the body as fluids.
-reclaiming of substances in filtrate
other unwanted compounds are actively extracted from the body fluids and added to the filtrate for excretion
-other toxins in body put into filtrate
the filtrate leaves the body as urine
branch off the aorta and supply blood to the kidneys
carry blood away from kidneys to inferior vena cava
the functional unit of the kidney
dives deep into the medulla
enables mammals to produce urine that is hyper osmotic to the body fluids.
salts water and nutrients are absorbed
water permeable but not very permeable to solutes
permeable to solutes, but not much to water.
osmolarity of the filtrate increases
regulates NaCl and K+ in body fluids.
varies absorption and secretion
plays role in how much NaCl is reclaimed in the filtrate
removal of excess water in urine
drugs that cause more excretion in urine
regulates water permeability
it has an ability to inhibit diuresis
peritubular cappillaries that dip into the medulla and go back up to the cortex
renin- angiotensin-aldosterone system
responds to changes in blood volume
senses fluid flow dynamics
constricts in response to angiotensin 2
atrial natruiretic peptide
key to reabsorption and excretion