| A | B |
|---|
| excretion | how the body rids itself of toxic substances |
| carbon dioxide, water and salt | major substance that are excreted |
| skin, lungs and kidneys | organs that control the excretion of water salt and carbon dioxide. |
| ammonia NH3 | Very toxic product from the break down of amino acids that must get eliminated from the body |
| Urea | less toxic product of 2 ammonia molecules and carbon dioxide. Made in the liver |
| Urine | made of urea and water |
| Kidneys | conrols how much salt and water are in our body |
| adrenal gland | orgam that makes a hormone that tell the kidney how much salt to excrete |
| nephrons | tha basis filtering unit in the kidneyThere are 1 million of them in the kidney |
| Bowmans capsule | This is the upper part of the nephron where blood enters and is filletred by capillaries called the glomerulus. |
| glomerulus | capillaries that filter blood in the kidney |
| filtrate | liquid that remais in bowmans capsule after the glomerulus filters blood |
| Renal tubule | Collects the liquid filtrate from bowmans capsule |
| Loop of Henle | many molecules are reclaimed by this loop including glucose amino acids so they do not just eliminated |
| reanl tubule | bowmans capsule connects to this structure that hold the filtrate from the glomerulus |
| collecting duct | after the loop of henle this structure reclaims most of the water concentrates urine |
| ureters | collects urine from kidney delivers it to the bladder |
| bladder | stores urine for excretion |
| urethra | the tube that urines exits the body longer in men than women |
| kidney failure | very serious condition where you get uncontrolled blood pressure, too much fluid, and too much urea build up and you could die |
| histocompatibility antigens | these are the antigen in your kidnesy that make it necessary to get a kidney from a twin which is 100% identical or a sibling. |
| Contration gradient of salt and urea | How the kidney lets osmosis help form a concentrated urine |
