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SLSBio12KidneysPG
| Term | Definition |
|---|---|
| Antidiuretic hormone | reduces urine flow by affecting reabsorption of water by kidney tubules |
| Adrenal cortex | Exterior part of the adrenal gland |
| Afferent and efferent arterioles | Arterioles that bring the blood in and out od the glomerulus |
| Aldosterone | Controls salt and water balance in the kidney. |
| Bowman's capsule | Thin double membrane surrounding the glomerulus of a nephron. |
| Collecting duct | Duct where the urine is collected |
| Glomerulus | A small intertwined group of capillaries in the malpighian body; glomeruli filter blood during urine formation. |
| Homeostasis | The tendency of an organism or a cell to regulate its internal conditions, usually by a system of feedback controls |
| Hypothalamus | a portion of the brain which lies beneath the thalamus and secretes substances which control metabolism by exerting an influence on pituitary gland function. |
| Kidneys | The kidney function is to filter the blood and control the level of some chemicals in the blood such as hydrogen, sodium, potassium, and phosphate and they eliminate waste in the form of urine. |
| Loop of Henle | a u-shaped turn in the medullary portion of a renal tubule |
| Metabolic waste | Substances that the body needs to eliminate |
| Nephron | Any of the small tubules that are the excretory units of the vertebrate kidney |
| Nitrogenous waste | wastes (particularly urine) that contain materials high in nitrogen content. |
| Osmotic gradient | differing particle concentrations on the two sides of the membrane |
| Peritubular capillary network | tiny blood vessels that travel alongside nephrons allowing reabsorption and secretion between blood and the inner lumen of the nephron. |
| Posterior pituitary | A small endocrine gland secreting hormones that regulate growth and metabolism |
| Pressure filtration | Pressure causes small molecules to go through the a membrane |
| Proximal and distal convoluted tubules | place where reabsorption and secretion happens. |
| Reabsorption of water | Proteins make sodium ions cross the membrane and water follows them |
| Renal cortex | The exterior part of the kidneys |
| Renal medulla | The interior part of the kidneys |
| Renal pelvis | The middle part of the kidneys |
| Selective Reabsorbtion | Only nutrients that are required are able to pass |
| Tubular excretion | Substances are removed from the blood and added to the tubular fluid. |
| Urea | The final nitrogenous excretion product of many organisms. |
| Ureter | The tube passing from each kidney to the bladder |
| Urethra | The tube that conveys urine from the bladder to the outside. |
| Urinary bladder | A musculomembranous elastic bag serving as a storage place for the urine. |
| Urine | fluid excretion from the kidneys |
Created by:
pierrick02
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