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5/25/2021Bio 253 final exam Flashcards | Quizlet-ﬂash-cards/1/14Bio 253 final examGet access to all your stats, your personal progress dashboard and smart study shortcuts with Quizlet Plus.Unlock ProgressTerms in this set (195)Organelles are...Organs of the Urinary systemkidneys, ureters, urinary bladder, urethradraw and label a kidney with thefollowing terms: Cortex, Medulla,Pelvis, renal artery, renal vein,ureter, nephron...functional unit of the kidneynephron1 million per kidney!What parts make up the nephron?Renal corpuscleRenal tubuleGlomerulus (capillaries that filter the blood plasma)Bowman's capsule (surrounds the glomerulus)Efferent arterioleloop of henleWhat is the glomerulus made of?capillariesFunction of a nephronfilter blood and produce urineTwo nephron typesjuxtamedullary and corticaljuxtamedullary nephrons-Long nephron loops deeply invade medulla-Ascending limbs have thick and thin segments-Important in production of concentrated urine-found at the boundary of the cortex and medullacortical nephrons-85% of all nephrons-short nephron loops-efferent arterioles branch into peritubular capillaries around PCT andDCTBio 253 final exam
5/25/2021Bio 253 final exam Flashcards | Quizlet-ﬂash-cards/2/14Upgrade to remove adsOnly $3.99/monthClimate Heating & CoolingGet QuoteAdClimate Heating & CoolingHow is urine made in the kidney?1.)Reabsorption - moving substances with tubule into the blood.2.)filtration - occurs in the glomerulus or renal corpuscle3.)secretion4.)filtrationdriving force for filtrationhydrostatic pressure or BPWhat fluid comes out of the glomerulus?filtrateWhat is filtrate?mostly water, electrolytes, nutrients, and waste products. Glucose isnormal in filtrate.-similar to blood plasmaReabsorption in the Nephron LoopOnly water is absorbed in the descending limb. Na+ chloride isabsorbed in the ascending limb (no water).Status of water coming out of nephronloop?@ Lowest concentration (diluted)Process taking place in nephron loop?Countercurrent mechanism (dilutes the urine). Can also createconcentrated urine from the Na+ absorbed in the ascending limb.tubular secretion-selectively moves substances from blood to filtrate in renal tubulesand collecting ducts-From blood to tubular-Usually in the distal tubule-K+, H+, Uric acid, Penicillin are secretedHormones that regulate kidney functiondirectly :ADHAldosteroneANHindirectly :Renin (created by kidney)AngiotensinAldosterone function-decreases sodium and water loss in urine by returning sodium andwater to the bloodBio 253 final exam
5/25/2021Bio 253 final exam Flashcards | Quizlet-ﬂash-cards/3/14Upgrade to remove adsOnly $3.99/monthCoffee Bar Gahanna/New AlbanyVisit SiteAdSweetwaters Coffee & TeaAldosterone: Target CellskidneysANH functionTells kidneys that blood volume is too high, so dumps out H20 and Na+Effects of ADHincreases reabsorption of water from urine back into plasma and