Excretion System On Man

Excretion System on Man Tools excretion or expenditure Which there is on man And animal vertebrates on generally consists from kidney, skin, lungs, heart, And anus. Through those tools, waste substances the result of metabolism that is not utilized again at in body will issued. Each organs or tools production the said have function separately. Type- type substance leftovers which issued will be adapted to the tool production used for take it out. major . Calix major branching Again become calix minor. Calix minor is place First it ends urine Which later enter calix major, Finally to pelvis For saved temporary before streamed to bag urinary through ureter . In cortex n part And medulla there is structure Which called nephron. Around One until four million nephron there is in A kidney. Nephron here it is Which works make urine. So, process filtration And absorption happen in nephron. 1. Kidney Mammals own kidney type metanephros. Waste the nitrogen is urea. Urea thrown away in form liquid. By Because That, urine need water as solvent waste. Mammals own kidney type metanephros. Waste the nitrogen is urea. Urea thrown away in form liquid. By Because That, urine need water as solvent waste. a. Parts Kidney Kidney mammals shaped seed fruit peanut And there is on cavity stomach part behind. Kidney consists from two layer. Part outside called cortex , part in called medulla . Indentation in Wrong One side kidney called hilus . Through hilus This Then cross happen, start from cup kidney (pelvis) to ureter And to pocket urinary bring urine, fiber nerve Also enter through hilus. Thereby also vessels blood And vessels lymph. Vessels blood on kidney, especially on glomerulus very fine And porous. Matter This For makes it easier go out entry molecules substance on process reabsorption. In in kidney not enough more There is a million vessels fine (arteriolus). Pelvis or cup kidney branching become calix Nephron size almost microscopic. On enlargement certain can We Look that nephron consists from parts as following. 1) Capsule Bowman, shaped cup Which actually is branching tubule, Which envelop glomerulus. Form capsule possible filtering filtrate from glomerulus to tubule the more effective. 2) Channel nephron or tubule Which consists on tubule contortus proximal, curved Henle, And tubule contortus distal. 3) Channel collector or tubule collecta (collector), is estuary from dozens tubule distal. Tubules collecta will ends on calix minor. b. Formed Urine Mechanism Which has You know that substance remainder metabolism Which issued kidney is urine. How? formation urine? Process formation urine in kidney taking place through four stage, that is filtration, absorption active, absorption passive, And secretion . Term wash blood by kidney perhaps Enough appropriate. Through kidney, blood Which bring various substance And molecule Which enter through digestion And remainder metabolism cell will filtered. Substance Which must thrown away will drove to tubule collective, And substance Which Still used will return to in blood For circulating to all over body. 1) Filtration Every 5 minutes, the blood flowing in the body is deeply filtered glomerulus. Vessels blood in glomerulus Which very fine And porous cause escaped fluid, a number substance food, salts, And substance other Which No needed. Matter This happen with exists help from pressure Genre blood in glomerulus. In between Which get away from vessels glomerulus, almost there is no protein because the molecules are too large compared to the pores glomerulus. Filtrate Which go out from glomerulus similar with arrangement plasma blood. 2) Absorption active And absorption passive Filtrate from glomerulus will enter tubule. In tubule here it is formation urine started. Part First tubule is tubule contorti proximal. In here part big filtrate Which of course Still contain substance food will absorbed return. Tubules contorti proximal own surface Which full with microvilli, something folds epithelium For expand surface tubule, so that absorption can done more Lots And fast. There is microvilli cause wide tubule become ± 6 m2. Microvilli do absorption active to all glucose And ions Na,Cl, Ca, K, HCO 3, SO 4 contained in the filtrate. Absorption passive done to water Which will diffuse based on pressure osmotic. Sour amino type albumin Which join in in filtrate will reabsorbed in all over part tubule. All material Which reabsorbed returned to in blood. Now remainder filtrate is waste nitrogen And a number salt Which Keep going going to to curved Henle. On curved Henle happen reabsorption sodium to in blood. With reduced salts, solution urine Which Keep going drove going to to tubule contortus distal nature hypotonic (dilute) Because in curved Henle No There is absorption water. Next, in the distal tubule of urine Still reabsorbed the salt in place- place certain. Thereby also water in urine reabsorbed to in network. Through tubule collective, urine Already truly pure like urine. A number of medical community mention urine results processing curved Henle as urine secondary, whereas urine Which Still in the area of the proximal tubule is called urine primary. 3) Secretion Secretion in here is process he took it out urine from turbule collective to calix minor. Every day kidney produce not enough more 2 liter urine Which in a way periodically issued after saved temporary in pocket urinary. Need You know that besides passed by filtrate from glomerulus, tubule proximal until tubule distal Also do secretion substances certain to in urine. Substances the is ion hydrogen (H+) Which thrown away by blood Because pH blood too sour. If pH blood start go on, secretion ion H + from blood to tubule is ammonia (NH 3 ), ion K+ , And creatinine, For unite with urine. Disposal ammonia only help road main Which usually through glomerulus. Substance dye food or drug Also secreted through tubule. Arrangement concentration water in blood And in in tubule kidney arranged by hormone anti diuretic or ADH (Anti Diuretic Hormone). If water in in blood reduce so will detected by receptor in brain And stimulate gland pituitary For produces ADH. ADH will cause water in tubule kidney absorbed to in blood And cause urine become concentrated, but blood rather runny. If blood currently runny, for example after drink Lots water, ADH No produced. So urine concentrated Which hypertonic will cause water in in blood absorbed to in tubule unite with urine, And distributed to pocket urinary For thrown away. We often feel, if Lots drink will cause often throw away water small. 2. Leather Skin is organ outermost body Which own structure Which Enough complex And own various function Which vital. Skin have role For look after temperature body, And protect network Which There is in underneath from disturbance physique form friction, radiation, hot, germs, And substance chemistry. Besides That, skin Also works as tool excretion with method emit sweat. Lots of it sweat Which issued by somebody influenced by a number of factor, in among them activity body, temperature environment, food, circumstances emotion, And circumstances health. Skin consists from two layer, that is layer outside (epidermis) And layer in (dermis). a. Epidermis Epidermis is part outside skin Which rather thin form network epithelium. Epidermis known Also with Name skin ari Which consists from a number of layer. 1) Stratum corneum Stratum corneum or called Also layer substance horn is layer cell dead Which always peeling And arranged on layered network cell flat. Stratum corneum works For protect cells And prevent entry seeds disease. 2) The bed played Stratum lucidum is layer cell dead Which clear And No nucleated. Layer This works For replace cells Which there is on layer stratum corneum And only found on skin thick, like skin palm hand. 3) The bed granular Stratum granulosum is layer Which arranged by cells flat containing granule colored dark contain keratohyaline. Layer This own function Which The same with stratum lusidium, that is replace cells Which there is on layer stratum corneum. 4) Stratum spinosum Stratum spinosum is layer cells the shape polyhedral And arranged meeting, as well as its surface appeared formation like thorns. 5) Stratum germinativum Stratum germinativum is layer Which arranged on layer cell cube. Layer This active do division And works form layer cell new. b. Dermis Layer dermis located in lower layer epidermis And consists on network tie Which contain fibers elastic And collagen. On layer dermis there is vessels blood, root hair, end nerve, gland sweat (glandula sundorifera), as well as gland oil (glandula sebassea) Which location near root hair. Gland sweat works For emit sweat Which contain substance remainder metabolism. Gland This shaped like pipe twisted Which elongated. Base gland This relate with capillary blood as well as fiber nerve sympathetic. From capillary blood the, gland sweat will absorb water with solution salt And A little urea. Arrangement Work gland sweat is at in lower influence center arrangement temperature body (hypothalamus) And enzyme brandikinin Which it works stimulated by change temperature body. On person Which own activity Which Enough tall in daily life, expenditure sweat will more Lots from condition normal so that water And salt Lots Which wasted. Matter This will result person the experience dehydration. On moment environment currently hot gland sweat active And vessels capillary on the skin expands. The widening of the capillaries causes the seepage of water and waste metabolism become sweat. It's active gland sweat result out sweat to surface skin with method evaporation. Evaporation cause temperature in surface skin down so that We No feel hot Again. Sweating is method skin guard balance temperature body with the environment. When weather currently bad or temperature environment cold, gland sweat stop his activities, Then capillary blood in skin narrowed. On circumstances This blood No can throw away water And remainder metabolism. With thereby, temperature body still like beginning, And No reduce the temperature. Evaporation very seldom happen so that body No freezing. 3. Lungs Besides Work in process Respiratory, lungs role double in process expenditure. The only one tool Which can throw away remainder metabolism in form gas is lungs. Excretion lungs simultaneously with respiration. Phase exhalation or expiration on process breathe actually Also is excretion process . Carbon dioxide and water vapor are the remains of respiration in every cell of the body, specifically done by mitochondria in frame acquisition energy through oxidation food. By chemical, process the can written as following. Remainder respiration form gas carbon dioxide And steam water This Which exhaled go out on phase exhalation. Initially, carbon dioxide And steam water from cell diffused to blood in vein, Then streamed to lungs For excreted. 4. Heart Heart is gland biggest in body. Role mainly help process digestion food. In near heart there is A pocket small with color contrast, that is pocket bile. From heart issued fluid bile Which contain substances emulsifier fat, Also contain pigment. Pigment bile is results destruction of red blood cells Already old And stacked in heart. Heart change And destroy rubbish the. Hemoglobin old changed become pigment bile. Moment fluid bile enter intestines, pigment No join in digested, only missed And unite with feces. Color yellow feces is proof exists pigment bile. So, rubbish Hemoglobin is excreted in feces. In addition, the activity of bacteria from the large intestine cause pigment absorbed to in blood. Color yellow on plasma blood And urine originate from pigment bile Also. Heart Also synthesize a number proteins become compound neutralizer poison, And can destroy bacteria in the blood. The process of neutralizing toxins is called detox. Heart Also will accumulate poison Which difficult outlined And saved in in heart so that No poison all over body.