Types of lisele mesifa le litšobotsi tsa bona

A sehloohong sena a re tla sheba mefuta ya dinama tse nyenyane tse mesifa. Ena ke sehlooho bohlokoa haholo thutong ea baeloji, hobane mong le e mong o lokela ho tseba mokhoa oa ho sebetsa mesifa rona. Li emela tsamaiso e rarahaneng, ho ithuta eo, re tšepa hore u tla ba le thahasello. Le ho thusa molemo mahlo a kelello mefuta ya litšoantšo mesifa dinama tse nyenyane tse hore u tla fumana sehloohong sena. Pele ho tsohle, re fana ka tlhaloso, e ke ho hlokahala hore ho ithuta taba eo.

Muscle dinama tse nyenyane tse - sehlopha khethehileng tsa lisele batho le liphoofolo, mosebetsi o ka sehloohong oa e phokotso lona e etsang hore le motsamao oa 'mele kapa ba likarolo tsa lona tse sepakapakeng. mosebetsi ona tšoana le sebōpeho sa thepa ea motheo e ka sehloohong tse etsang mefuta e sa tšoaneng tsa lisele mesifa. likarolo tsena ba le dikamano longitudinal le e myofibrils o molelele o, e akarelletsa ho litho tsa bona tse sa contractile liprotheine - myosin le actin. Muscle dinama tse nyenyane tse e dinama tse nyenyane tse epithelial ke sehlopha sehlopha e le likarolo tsa lona ka sehloohong ba ntshetswa pele ho tloha mehloli embryonic.

Phokotso ea dinama tse nyenyane tse mesifa

lisele tse lona, hammoho le la methapo ea kutlo, ka tlas'a tšusumetso ea linaoa motlakase le lik'hemik'hale ka ba thabile. matla a bona a ho konteraka (khutsufatsa) ka lebaka la ho hlasimollang ho khetheha e amahanngoa le boteng ba myofibrillar protheine dibopeho itseng, e mong le e ea eona e entsoe ka microfilaments tsa likhoele tse kgutshwanyane protheine. Ka lehlakoreng le leng, ba ile ba ba aroloa ka myosin (motenya) le actin (tšesaane) likhoele. Ka lebaka la tsusumetso ea methapo ea kutlo ho fokotsa mefuta e sa tšoaneng ea dinama tse nyenyane tse mesifa. Cut ho mesifa e tšoaetsanoang ka hammoho le methapo ea kutlo Scion ka neurotransmitter, e leng ke acetylcholine. lisele tse mesifa ea 'mele li jara makgetheng matla tse pholosang tsa di sebelisitse matla a ka ho fokotsa mesifa tse fapa-fapaneng ka nako eo matla a lokolloa e le mocheso. Ke ka lebaka leo, ha 'mele o e pepesehetse Cooling, lumelisanang se hlahile. Hase hore ba bang, jwalo ka khafetsa mesifa e honyele.

O ka khetha mefuta e latelang ya dinama tse nyenyane tse mesifa, ho itšetlehile ka mofuta ofe sebopeho e ba contractile sethusathuto: boreleli le striated. Ba akarelletsa ho mefuta histogenetic fapana ka sebopeho.

Striated mesifa dinama tse nyenyane tse

lisele tse Myotomes, tse thehoa ho tswa ho dorsal mesoderm, ke mohloli oa ntshetsopeleng lona. dinama tse nyenyane tse ena e entsoe ka masela o molelele o mesifa hore na le mofuta o mong oa diselennere, e lipheletsong tsa tse o ile a bontša. cm, 12 ka bolelele 'me microns 80 le bophara ba finyella lihlopha tsena. Symplasts (thuto selotlolo konokono) di leng ka e le setsi sa likhoele le mesifa. Kantle ho bona lisele tse haufi bitsoa "myosatellite seleng." Sarcolemma feela faeba. Ho Ho thehoa plasmolemma symplast le mokatong o ka tlaase lera. Tlas'a masela basal lera ba lokisetsa miosatelliototsity - e le hore ba amehileng ka sona plasmolemma symplast cytolemma. lisele tse tsena ke ya marapo mesifa pokello cambium dinama tse nyenyane tse, 'me oona o etsoang tsoa ka a bale litsenyehelo ea likhoele nchafatso. Myosymplasts ntle plasmolemma kenyeletsa hape sarcoplasm (cytoplasm) 'me a lokisetsa nuclei circumferentially tse ngata.

Meaning of striated mesifa dinama tse nyenyane tse

Ha a hlalosa mefuta ya dinama tse nyenyane tse mesifa, re lokela ho hlokomela hore sesebediswa phethahatso e striated kaofela dilenaneo tsamaiso. Ho bopa mesifa ya marapo. Ho feta moo, ea mofuta ona e lesela ke karolo ea litho tsa ka hare tse kang pharynx, puo ea, pelo, metso ka holimo 'me ba bang. The boima palo yohle e ka batho ba baholo ke ho fihlela ho 40% ka boima ba' mele, le ba hōlileng, 'me masea a, ho bolelelane - 20-30%.

Features ya striated mesifa dinama tse nyenyane tse

Phokotsong ea mofuta ona wa dinama tse nyenyane tse mesifa, hangata a ka etsoa ka ho kenya letsoho ha akheha. E na le lebelo hanyenyane e phahameng ka ho ipapisa le boreleli. Joalokaha u ka bona, le mefuta e mengata ea dinama tse nyenyane tse mesifa tse fapaneng (ka boreleli, re tla bua hang, 'me re ela hloko tse ling tsa ho se tšoane le leng pakeng tsa tse peli). Ka methapo striated mesifa lemoha maemo hona joale tsa mesifa dinama tse nyenyane tse, 'me joale fetisetsa ka likhoele afferent ea litsi le methapo ea kutlo, ke eena ea ikarabellang bakeng sa molao oa tsamaiso ea litsamaiso tsa likoloi. Control mesifa mosebetsi matšoao a fuoa tloha molaoli ea ka ka mokgwa wa litakatso tsa methapo ea kutlo, kapa ke autonomic efferent likhoele dilenaneo methapo ea kutlo.

Smooth mesifa dinama tse nyenyane tse

Re tsoela pele ho hlalosa le mefuta e mengata ea mesifa batho dinama tse nyenyane tse, tsoela pele ho boreleli. E thehoa ka lisele tse leakage radiation e bōpehileng joaloka, eo bolelele e tsoa ho microns 15 ho tse 500, 'me bophara ke ka mefuta e fapaneng ho tloha microns 2 ho 10. Ho fapana le likhoele mesifa striated, lisele tsena ba le khubung ngoe. Ho phaella moo, ha ba be le sefapano striations.

Meaning of mesifa boreleli dinama tse nyenyane tse

Ho tswa ho contractile mosebetsi wa mofuta ona wa dinama tse nyenyane tse mesifa itšetlehile ka ea ka tšebetso ea tsamaiso ea tsohle ea 'mele, hobane ke karolo ea mong le e ba bona ba. Ka mohlala, le boreleli mesifa dinama tse nyenyane tse ka taolo ya airway bophara, methapo ea mali, pelehi uterine, senya mosese, ka ho kenngwa tshebetsong ha mesebetsi ya rona dilenaneo pampitšaneng ena tshilong ya dijo. Ho laola bophara tsa thaka ea mahlo, 'me le tsona kopanelang papaling ea ho ka mefuta e fapaneng ya mesebetsi e meng ea tsamaiso ea tse fapa-fapaneng tsa' mele.

dikarolo mesifa

Muscle dikarolo eaba ba etsa mofuta ona wa dinama tse nyenyane tse ka lerako la lisele tsa mmele le mali lijana, 'me makala a tsohle sekoti. Hangata ho le dikarolo tse peli kapa tse tharo. Thick chitja - lera ka ntle ha se bolele hore ho na le tšesaane longitudinal - ka hare. Feeding lijana mesifa mali, methapo ea kutlo le lisele tse mesifa atolosa e tšoanang le ho ea tselaneng ea pakeng tsa maballo bona. lisele tse boreleli mesifa ka aroloa mefuta 2: sebopego se se tshwaraganyang (go lotagantswe hlophisitsoe) le myocytes ikemetseng.

myocytes ikemetseng

Standalone mosebetsi haholo ntle ho e mong le e tse ling tse, e le e innervated ke methapo ea kutlo ho ipolaea e mong seleng ea mofuta oo. Ba ile ba fumanoa ka le dikarolo le mesifa ea methapo ea kgolo mali, hammoho le ka ciliary mesifa ea leihlo. Hape li bua ka mofuta ona wa lisele tsa mesifa, ho phahamisa moriri.

myocytes sebopego se se tshwaraganyang

lisele tse mesifa sebopego se se tshwaraganyang, ka fapana le hoo, ba haufi-ufi lohellana le mong ho e mong e le hore lera la bona ka hase feela abut ka thata-thata ho e mong le e tse ling tse ya ho theha desmosomes, empa hape kopane eaba ba etsa Nexus (lekhalo junctions). Tufts ba thehoa ka lebaka la mokhatlo. bophara ba bona ke ba ka bang 100 microns le bolelele ke limilimithara tse 'maloa. Ba theha marangrang, 'me lisele tse lona tse lohiloeng collagen likhoele. Masela autonomic methapo ea kutlo tse innervated ke libalaka le ba diyuniti tsa tshebetso tsa mesifa boreleli dinama tse nyenyane tse. Depolarization nakong nyakallo khanya ea e 'ngoe a ka cell jala ka potlako ho ea boahelani e tlaase ho hanyetsa lekhalo junctions. E entsoeng ka lisele tse sebopego se se tshwaraganyang ya dinama tse nyenyane tse ke hore, ka makala haholo. Hona ho kenyeletsa ureters, popelo, pampitšana tshilong ya dijo.

fokotsa myocytes

Phokotsong ka boreleli dinama tse nyenyane tse mesifa seleng ea bakileng e le striated ka, sebelisana tsa actin le myosin linaleli. Sena se tšoanang le mefuta e sa tšoaneng tsa mesifa dinama tse nyenyane tse ka batho. palesa tsena li ajoa ka hare mioplazmy tlase ka mokhoa o laolehileng ho feta ka mesifa striated. Sena se hlalosa lebaka la ho hloka ea sefapano-striations ka mesifa boreleli dinama tse nyenyane tse. Intracellular k'halsiamo ke qetellong actuator laolang sebelisana tsa myosin le actin linaleli (i.e., ho fokotseha ha myocytes). E tšoanang e sebetsa ho mesifa striated. Leha ho le joalo, lintlha tse sa fapana haholo ho tloha mochine taolo ea e qetellang.

Etsahala ka ho fetisisa motenya mesifa dinama tse nyenyane tse e be tse boreleli axons vegetative Foromo ya synapses ha ba, e leng tšobotsi ea dinama tse nyenyane tse striated, thickening le se sengata fumaneha hammoho bolelele kaofela, a phethang karolo ea synapses. Thickening secrete mokena-lipakeng hore diffuses teng haufi le myocytes. Receptor limolek'hule fumana holim 'a myocytes ena. Le bona, e le mokena-lipakeng le sebedisana. Ao bo a bakang depolarization tsa myocyte ka lera le ka ntle.

Features mesifa boreleli dinama tse nyenyane tse

tsamaiso ea methapo, autonomic lefapha hae e khona kantle ho nka karolo ha ka ilibana mosebetsi mesifa boreleli. Senya mesifa ke mokhelo feela. Control matšoao a hlokomela ka ho toba kapa ka tsela e sa tobang - ka hormonal (lik'hemik'hale, humoral) poeletsotlaleho.

Matla le ho phetha molao feela thepa ea mofuta ona ho fana ka ho boloka mesifa molumo (khona) marako a makala sekoti le lijana. Sena ke ka ntlha ya go ha e le hantle hore lesela e boreleli tshebetso ka tsela e atlehang, ho ha ho hloke ditshenyehelo kgolo ya ATP. Ho na le e ka tlaase lebelo ho feta ea striated mesifa dinama tse nyenyane tse, empa ho ka fokotsoa ka nakoana e seng kae, ho phaella moo, a ka hlahisa gagamalo mohlomong le fapana ho pharaletseng ka bolelele.

Ho joalo, re ka sheba mefuta ya dinama tse nyenyane tse mesifa le peculiarities ea mokhatlo o hlophisitsoeng bona mehaho. Ya e le hantle, sena ke lesedi feela tsa motheo. Ho ka ba nako e telele ho hlalosa mefuta ya dinama tse nyenyane tse mesifa. Figures tla u thusa ho bona eka ba.