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Biology

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Published in: Biology
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Excretory System

Jasleen / Delhi

6 years of teaching experience

Qualification: M. P. T. in Cardiopulmonary

Teaches: Anatomy, Biology, KVPY Exam, Physiology, IAS Preparation, UPSC Exam, AIPMT, Medical Entrance Exams, Zoology

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  1. "??????? ?????? ?????? ?????
  2. 0 •noorcc u/Atjon arflrrja13 control 301crle concerftratjorj3 & 510334 -J 03rrjocorrforrrjer: '13003rr10tjc with ji3 r3wrt0LlrjcljncJ3 (sarrje €13 arljrrE113 -1 03rrjorecJLllator: & trial Selectively permeable membrane Net water flow Solutes Water Hyperosmotic side: Higher solute concentration lower free H20 concentration Hypoosmotic side: lower solute concentration Higher free H20 concentration
  3. cxcrelory jrj H -J 3kjrj J C ,JHC03 -J & JLT12C) In Humans, Liver converts toxic substances like ammonia into urea
  4. excrcton orooucts 'Urico-telic (uric acid): found in organisms relying on less amounts of water: Ammonotelic (ammonia): excreted by marine or aquatic animals as ammonia is more toxic & needs lots of water for its removal. Ureotelic(urea): excreted by terrestrial animals having adequate inputs of water Amino acids and nuc*ete acids Catabobsm Ammorua by•peoduet Eliminated Directly Ammonia Most bony fish and aquatic invertebrates Costs enetgy. saves water Converted to Urea Urea Mammals. amphibims. and cartit•genous fish Converted to Uric Acid Uric acid o o o Reptiles. birds. and insects
  5. Bowman's capsule -4 PCT —+ Loop of blaclCler Adrcn;i gard Utetet IJrrgty Urottga (Nephron) Oi$hroqm —1fie0bI artety van "E aest 0trt3 Psoas nude Henle DCT Proxima Efferent Glomerulus Glomerular capsule Afferent arteriole Collecting Artery— duct 1+ Venule Vein Ureter Descending limb Ascending limb convoluted arteriole Distal convoluted tubule Renal cortex Peritubular Renal medulla capillaries
  6. Glomerular capsule Afferent arteriole Artery— Vein Proxima Glomerulus convoluted ubule Venule Efferent arteriole Distal convoluted tubule Renal cortex Peritubular Renal medulla capillaries Descending lim Ascending limb Nephron C'.Ätcct•.O SV%TEV
  7. Posterior vena cava Renal artery and vein Aorta ret e r Urinary bladder Urethra (a) Excretory organs and major associated blood vessels Kidn ey Renal medulla Renal — medulla Renal cortex Renal pelvis Ureter 1 D em (b) Kidney structure Afferent arteriole from renal artery Efferent artenole from gl omerulus Section of kidney from a rat Clomerulus 4 rnm Juxtamedullary (c) Nephron types Cortical Col{ectjng duct renal renal vein Loop of Henle Descending limb Ascen ding limb Bowman's capsule Proximal tubule Peritubuiar capillaries Distal tubule Collecting duct Vasa recta A Figure 44.14 The mammalian excretory system. (d) Filtrate and blood flow
  8. Excretory system in Planaria ( Flatworm): Nucleus of cap cell Cilia Interstitial fluid filters through membrane where cap cell and tubule cell interlock. Tubule cell Tubule Tubules of protonephridia Flame bulb Opening in body wall
  9. Coelom Capillary network 0 0-0: Components of a metanephridium Internal opengng Collecting tubule O Bladder O External openrng Malpigian tubules in Insects Nephridia in Earthworm Digestive tract Rectum IntestinejHindgUt Midgut (stomach) Salt, water, and nitrogenous wastes Malpjghian tubules Feces and urine Malpighian tubule To anus Rectum Reabsorption of H20, ions, and valuable organic molecules HEMOLYMPH
  10. The information provided here must prove useful to you, Score well Good Luck and Thank you

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