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Lesson_12_The_Urinary_System

Lesson_12_The_Urinary_System - Dr Pamela ande or BME 5005...

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Unformatted text preview: Dr Pamela ande or BME 5005 — Reabsorption - Urine concentratiOn Also th1s system I‘ldS the body of unwanted toxins and cellular waste... Diaphragm Urethra ’ urethra. 1'. A. The excretory system B. The kidney (Inferior V308 03“) . - Medulla c. Orlentatlon at a nephron within the kidney Nephron tubule Bowman's capsule Renal artery Renal vein Collectlng Renal meditilla duct - . ghpew.‘ unlts of the kldneyi, and they do “mummm all the work of filtration Bowman’s capsule Arteriole from renal r1. .' artery '1 - Arteriole from glomerulus Branch of renal vein 0 Loop of Henle with capillary network Manon Wade-y Luann. Inc. Glomerulus _"‘\ A o Proximal tubule e;:pt1es 111113 the ureter .: . that there are parts of the nephron 111 both the corteX and the medulla (chck to see). H20 other small molecules —h- m _, —J-- Urine —I'- iii—"M.“ M lam PM” Wm. Inn. IIIII Nephron tubule “- ~- ; -~» H20. other small mama,“ _h_ H _.I*IIIIMI -—-———— Proximl tubule Dlstal tubule Gianna; amino acids Sumo drugs Rachael Ammpon -} Possum transport I! Secretion -) [active import) Milan Wail-y Lona-nan. Inc. 1 _ - .— the blcmd A1312) ‘ "We!” WWW 1301513113 and hydrogen ions can be secreted. into it. roxlmal tubule blatal tubu e Bowman’s MIDI H20 alum-u H00; arr-Inn- and: NICI H00; H20 '_ ‘ — '— -' SaflstflaCI,e'tc.) ' ' H00; Hr Urea Gimme; amino acids Some drugs Ream Ammsport up Passive var-span -b Mgmm" » Udneflo renal pelvis: S0 1t “£00 can be mm.,...m..m reabsorbed here. fl Dlatal tubu e NICI . roxll'flfl' tubule" Incl Bowman's capsule 3."; (NICI, etc.) H+ Urea mucosa: mm ”“5 Some dfllfl‘ m mmipm * [3.3st mp0" -’ Seaman“ # (W W) a. Hdlm wguty m' "‘3' I mine} renal POMS: the tubUIe Dlatal tubu e roxlrnal tubule- HID! H20 Glueoiolnd H00," swim-acids NaCI Balls (Neel, etc.) H00; Hf Urea mucosa; ammo acids Some drugs Ream Ammsport up Passive tampon -b m... .. descends through “6 (active W) Urine (to renal pelvis' www.....m..m. H __ 7' fl collecting duct. roxlmal tubule HID! H20 Guam-II H00.- arrl'nn- acid! Niel Dlatal tubu e ",0 -_._._'F.__..__._- Saflstflaclmtc.) ' ' H00; Hr Urea mucosa; amino acids Some drugs Ream Ammspofl n} Passive transpon -b Man II) (active humped) nudism Nancy m. Inn. manner blud vol Urn-em renal pelvis; can. be; kept constant; Type During During filling micturition Detrusor Parasympathetic Inhibited Stimulated (smooth muscle) (causes convection) Internal urethral Sympathetic Stimulated Inhibited sphincter (causes (smooth muscle) contraction) External urethral Somatic motor Stimulated Inhibited sphincter (causes (skeletal muscle) contraction) volume ‘ :Li'fji‘j by the k1dneys1s stored. 111 the bladder, and urinat1on 1s;st1mulated by the parasympathetic nervous system. 1d, 1 _ I .. e mule - The external. urethral sphlncter is under- Voluntary control ...
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