Term
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Definition
| Nephrons (Cortical and Juxtamedullary)...Bowmans Capsual, Proximal Tubule, Loop of Henle, Distal Tubule, Collecting Duct, Blood Vessels |
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Term
| Kidneys: Juxtamedullary Nephron |
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Definition
| Long loops of Henle that extend into medulla |
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Term
| Kidneys: Cortical Nephron |
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Definition
| Reduced loops of Henle...Confined to cortex...80% of all nephrons |
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Term
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Definition
| Reabsorbs glucose and amino acids, bicarbonate NaCl |
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Term
| Kidneys: Descending limb of loop of Henle |
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Definition
| Freely permable to water but not so much to salt...As go more towards inner medulla becomes more salty and more water is taken into interstisial fluid. |
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Term
| Kidneys: Ascending limb of loop of Henle |
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Definition
| filtrate is progressivly diluted as it moves up the ascending limb of loop of Henle. NaCl is activly transported out near top. |
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Term
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Definition
| Regulates K+ and NaCl concentration of body fluids by varing amounts that they are secreted and reabsorbed. Also contributes to pH regulation |
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Term
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Definition
| absorbes NaCl puts out H2O |
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Term
| Antidiuretic Hormone (ADH) |
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Definition
| Controlled by hypothalamus...Released from pituitary gland...Increases permeability of Collecting Duct and Distal Tubule...prevents extra loss of H2O...Causes sensation of thirst. |
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Term
| Renin-Angiotensin-Aldosterone System (RAAS) |
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Definition
| Regulates blodd pressure...JGA sense blood pressure drop ->releases Renin ->Angiotension II (causes blood vessels to constrict;;also causes proximal tubules to reabsorb NaCl and H2O) ->Aldosterone is also released and affe3cts Na and H2O reabsorbtion in nephrons. |
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Term
| Atrial Natriuretic Factor (ANF) |
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Definition
| Counteracts RAAS...released by atrial walls in response to increased blood volume and pressure. Inhibits release of Renin and absorbtion of NaCl. |
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