-shiid la egyahay: marxaladaha aasaasiga ah shiid baruurta

-shiid la egyahay - waa shiid dufanka iyo xaydha-sida walxaha. Exchange la egyahay ka kooban yahay afar tallaabo qaybsama, nuugista, dhexe iyo is-weydaarsiga final.

-shiid la egyahay: dheefshiidka. subaga intooda badan, kuwaas oo qeyb ka mid ah cuntada ee jidhku u nuugo oo kaliya ka dib markii dheefshiidka ka hor. Under tallaabada ee casiirka dheefshiidka, iyagu waa hydrolyzed (dhegay) galay xeryahooda fudud (glycerol, acids dufan sare, sterols, acids phosphoric, saldhigyada nitrogenous, alcohols sare, iwm) waxaa lagu nuugo xuubdheecaanka ee kanaalka alimentary.

cuntada afka ka kooban subaga, mashiin gooyay, isku qasan, ayay ilmadeeda candhuuftii oo loo beddelaa cunto com. Iyo xoolo tiro cunto hunguriga caloosha gala. Halkan ay isku daraan oo dhex juice ka gastric. juice caloosha ku jira enzyme a lipolytic - lipase, taasoo jebin kartaa emulsification baruurta. Cuntada caloosha si tacsida ee qaybo yaryar oo geli malawadka, jejunum ah, ka dibna in axalaha ah. Halkan dhamaado habka of tageynaa subaga waxaa lagu nuugo iyo waxyaabaha hydrolysis ay. qaybsama la egyahay ayaa ka qayb bile, juice ganaca iyo juice xiidmaha.

Bile - waa sir, taas oo uu ku dhexsameeysmo by hepatocytes. The Halabuurka ee bile waxaa ka mid ah acids bile, iyo pigments, waxyaabaha nabaad haemoglobin, mucin, kolestaroolka, soyalecitin, dufanka, falgalka qaar ka mid ah, hormoono, iwm Bile waxaa ka qeyb qaadanaya emulsification ee subaga, ay dheefshiidka iyo nuugista; kor u peristalsis caadiga ah ee mindhicirka, muujinayaa saamayn bactericidal ku microflora xiidmaha. acids Bile yihiin dhexsameeysmo jirka ka kolestaroolka. Dufanka leh acid hoos xiisadda dusha ka mid ah dhibco baruurta baabaáysa iyaga kicin dheecaan ah ee casiir ganaca ah, iyo sidoo kale dhaqaajiso tallaabada of falgalka badan. In xiidmaha yar mass cuntada kaydkii juice ganaca, oo ka kooban hydrogencarbonate sodium iyo lipolytic ensaymes: lipase, esterase, phospholipase, phosphatase, iwm

-shiid la egyahay: nuugista. Inta badan subaga nuugo galay qaybta hoose ee ku malawadka iyo sare mindhicirrada jejunum. egyahay cuntada beeraha dheefshiidka nuugo epithelium ee villi ah. Oogada nuugid of unugyada kordhay microvilli. The alaabta hydrolysis la egyahay final ka kooban yahay qayb yar oo ah baruurta, qaybsamaa iyo monoglycerides ee acids sare dufanka leh, glycerol, glycerophosphate, saldhigyada nitrogenous, kolestaroolka, alcohols sare iyo phosphoric acid. In xiidmaha waaweyn ensaymes lipolytic maqan. xab colon ku jira xaddi yar oo ah phospholipids. Cholesterol, taas oo aan la nuugo, hoos u saxarada koprosterina.

-shiid la egyahay: sarrifka dhexe. In subaga ah waxa uu leeyahay muuqaalada qaar ka mid ah in been xaqiiqda ah in xiidmaha yar uun ka dib markii wax soo saarka fission nuugid dhacdaa subaga resynthesis soo jireenka ah ee nin.

-shiid la egyahay: sarrifka final. The alaabta waaweyn shiid la egyahay dhamaadka yihiin carbon dioxide iyo biyo. Arintaan waxay u taagan tahay soo baxay oo qayb ka ah kaadida iyo dhididka, qayb ahaan saxarada, hawada pipe. Carbon dioxide ugu horayn waxa sii daayay sambabada. sarrifka ugu dambaysa ee kooxaha qaar ka mid ah subaga waxay leedahay astaamo u gaar ah.

Xanuunka shiid la egyahay. -shiid la egyahay loo jeediyo in cuduro badan oo faafa, invasive iyo non-faafa. cudurradana-shiid la egyahay arkay xadgudub ku ah xeerka neurohumoral ee geeddi socodka dheefshiidka ee nuugista, biosynthesis iyo lipolysis. Waxaa ka mid ah xanuunada-shiid la egyahay inta badan iska diiwaan cayilka.

Cayilka - cabista kororka xad-dhaafka ah ee miisaanka jidhka xad-dhaaf ah ay sabab u tahay dhigaalka baruurta ee unugyada subcutaneous iyo unugyada kale ee jirka iyo meel intercellular. Dufanka waxaa lagu shubo gudaha unugyada baruurta qaab triglycerides. Tirada unugyada baruurta uma siyaadiyo, laakiin kaliya Kordhiyey mugga. Waa hypertrophy this of unugyada baruurta waa qodob weyn in cayilka.