Excretory System Quiz

Skin = Excretes water, salt, and small amounts of urea Lungs = Excrete both carbon dioxide and water Urinary system = Excretes water and urea

Medulla = Middle layer of the kidney Cortex = Outer layer of the kidney Pelvis = Inner layer of the kidney

Bladder = Contracts and empties the urine through the urethra Adrenal gland = Located on top of each kidney Renal artery = Brings blood to the kidney for filtration Renal vein = Carries filtered and purified blood away from the kidney

<p>Diluted bodily fluids = Causes all chemical reactions to slow down Producing weak, watery pale urine = Increases concentrations back to their proper levels</p> Signup and view all the answers

<p>Diuresis = Production of large quantities of water Nephron = Structure in the kidney which produces urine ADH = Hormone that conserves water by making the collecting duct more permeable Ultrafiltration = Process of blood plasma passing through the pores in the glomerulus wall</p> Signup and view all the answers

<p>Glucose, amino acids, vitamins, salt, and water = Proximal convoluted tubule Water = Loop of Henle and distal convoluted tubule Large proteins and blood cells = Not reabsorbed Final water balance regulation = Collecting duct under the influence of ADH</p> Signup and view all the answers

<p>Proximal convoluted tubule cells = Contain many mitochondria for active transport of substances Pituitary gland = Produces anti-diuretic hormone (ADH) Sphincter muscle = Prevents the bladder from leaking Hypothalamus = Monitors blood dilution and signals the pituitary gland to regulate ADH production</p> Signup and view all the answers

<p>Drinking a lot of water = Decreases ADH production, making collecting ducts less permeable Increase in blood concentration = Increases ADH production, making collecting ducts more permeable ADH = Stops diuresis by making collecting ducts more permeable to reabsorb water Diuresis = Production of large quantities of watery urine</p> Signup and view all the answers