Osmoregulation and Excretion
Terms : Hide Images
| 59194020 | osmoregulation | regulates solute concentrations and balances the gain and loss of water | |
| 59194021 | excretion | get rid of metabolic wastes | |
| 59194022 | osmolarity | whenever two solutions separated by the membrane differ in osmotic pressure | |
| 59194023 | osmoconformers | (only marine animals) are isoosmotice with thier surrondings and do not regulate thier osmolarity | |
| 59194024 | osmoregulators | expend energy to control water uptake and loss in a hyperosmotic or hypoosmotic environment | |
| 59194025 | stenohaline | cannot tolerate substantial changes in external osmolarity | |
| 59194026 | euryhaline | animals can survive large fluctuations in external osmolarity | |
| 59194027 | anhydrobiosis | animals (like the water bear) that can lose almost all thier body water and survive in a dormant state | |
| 59194028 | transport epithelia | specialized cells that regulate solute movement | |
| 59194029 | ammonia | animals that excrete nitrogenous wastes as ammonia need access to lots of water, release it across whole body survace or through gills | |
| 59194030 | urea | less toxic than ammonia, carried to kidneys, concentrated and excreted witha minimal loss of water | |
| 59194031 | uric acid | insects, snails, and many reptiles excrete this, largley insoluble in water and can be secreted as a paste with little water loss. | |
| 59194032 | filtration | pressure-filtering of body fluids producing a filtrate | |
| 59194033 | reabsorption | reclaiming valuable solutes from the filtrate | |
| 59194034 | secretion | addition of toxins and other solutes from the body fluids to the filtrate | |
| 59194035 | excretion | the filtrate leaves the system | |
| 59194036 | renal artery | supplies the kidney with blood | |
| 59194037 | renal vein | drains the kidney of blood | |
| 59194038 | ureter | urine exits each kidney through a duct called the _____ | |
| 59194039 | urinary bladder | both ureters drain into a common ____ ____ | |
| 59194040 | renal cortex | outer kidney | |
| 59194041 | renal medulla | inner kidney | |
| 59194042 | glomerulus | ball of capillaries | |
| 59194043 | bowmans capsule | surronds the glomerulus | |
| 59194044 | bowmans capsule, proximal tube, loop of henle, distal tubule and collecting duct | Order of filtration | |
| 59194045 | renal pelvis | the filtrate flows from the many collecting ducts of the kidneys into the ________ | |
| 59194046 | juxtamedullary nephrons | this nephron extends deeply into renal medulla | |
| 59194047 | afferent arteriole | each nephrone is suppled with by by this | |
| 59194048 | efferent arteriole | the capillaires converge as they leave the glomerulus forming an ___ ___ | |
| 59194049 | peritubular capillaires | surrons the proximal and distal tubules (capillaries) | |
| 59194050 | countercurrent multiplier system | maintains a high salt concentration in the interioir of the kidney, which enables the kidney to form concentrated urine | |
| 59194051 | ADH | Hormone that increases water reabsorption in the distal tubules anc collecting ducts of the kidney | |
| 59194052 | juxtaglomerular apparatus | specialized tissue that releases the enzyme renin when blood pressure or blood volume drops in the afferent arteriole that supplies blood to the glomerulus | |
| 59194053 | angiotensin 2 | hormone that stimulates constriction of precapillary arterioles and increases reabsorption of NaCl and water | |
| 59194054 | aldosterone | adrenal hormone that stimulates the reabsorption of sodium and passive flow of water that functions in homeostasis |
