14_CH17_URINARY - FINAL EXAM FOR BI 202 LECTURE TUESDAY...

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FINAL EXAM FOR BI 202 LECTURE TUESDAY DECEMBER 13 8:00-9:50 am in West Science 2904 Chapters: 16: Respiratory Physiology 17: Urinary Physiology 18: Digestive Physiology Not comprehensive Remember To Do The Course Evaluation Us e   Course Evaluation link o n EDUC AT o r  http://m ywe b .nm u.e du/c rs e val
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Structure and Function of the Kidneys G ro s s  s truc ture Mic ro s c o pic  S truc ture Glomerular Filtration G lo m e rula r Ultra filtra te Regulation of Glomerular Filtration rate Reabsorption of Salt and Water Re a b s o rptio n in the  Pro xim a l Tub ule The Countercurrent Multiplier System Collecting Duct: Effect of ADH Renal Plasma Clearance (NOT THIS SECTION) (NOT THIS SECTION) Renal Control of Electrolyte and Acid-Base Balance Ro le  o f Aldo s te ro ne  in Na +/K+ Ba la nc e C o ntro l o f Aldo s te ro ne  S e c re tio n Re la tio ns hip Be twe e n Na + , K + , H + Renal Acid-Base Regulation Clinical Applications (NOT THIS SECTION) CH 17: Physiology of the Kidneys
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Kidney Function Urine  fo rm e d b y the  kidne ys  and s to re d in  the  urinary b la dde r.   Kidneys regulate: fluid. waste products in blood. • concentration of blood electrolytes (Na + , K + , HC0 3 - others) & plasma pH.
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Structure of Urinary System Kidneys: paired, fist- sized, on either side of  vertebral column below  diaphragm.  Urine flows from  kidneys into ureters  which empty into  bladder. Fig 17.1: Organs of the Urinary System
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Structure of a Kidney Cortex: Medulla: c o ns is ts  o f re na l pyra m ids  s e pa ra te d b y  re na l c o lum ns .  Pyra m ids  c o nta in m ino r c a lyx/c a lyc e s ,  a nd the s e  unite  to  fo rm  m a jo r c a lyx/c a lyc e s . Fig 17.2
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Urinary   System Minor and major  calyces join to form  renal pelvis whic h c o lle c ts   urine . Renal pelvis  conducts urine to  ureters which empty  into bladder Fig 17.3 A pseudocolor radiograph of the urinary system
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Micturition Reflex (Urination) Micturition reflex center ( MRC , s a c ra l s pina l  c o rd) re g ula te s   internal (smooth muscle) & external (skeletal muscle) urethral sphincters . 1. Filling  o f b la dde r a c tiva te s  s tre tc h re c e pto rs  in  b la dde r wa ll tha t s e nd im puls e s  to  the  MRC . 2. ANS control: MRC  a c tiva te s  pa ra s ym pa the tic   ne rve s , c a us e s  (a )  detrusor muscle to contract (b )  internal urethral sphincter to relax, c re a ting   s e ns e  o f urg e nc y to  urina te . 3. 
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This note was uploaded on 02/12/2012 for the course BI 202 taught by Professor Winn during the Fall '10 term at Northern Michigan University.

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14_CH17_URINARY - FINAL EXAM FOR BI 202 LECTURE TUESDAY...

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