Lifecycle bovine tapeworm. Tus qauv ntawm bovine tapeworm

Parasites yog ib tug loj pej xeem noj qab haus huv tej teeb meem nyob rau hauv ntau lub teb chaws. Tapeworms neeg mob thoob ntiaj teb. Feem ntau ntawm lawv yog cov bullish thiab nqaij npuas tapeworm. Raws li cov laus, cov cua nab nyob rau hauv cov hnyuv thiab feem ntau tsis ua rau ntau raug mob. Tiam sis yog tias cov neeg raug kis kab mob hlwv (tsis paub qab hau theem), koj muaj peev xwm tsim cysticercosis - ib tug kab mob uas yuav ua rau lub hlwb puas tsuaj.

Yuav ua li cas yog ib tug cab?

Cab - ib tug kab mob uas nyob rau hauv tus tswv tsev kab thiab nyob rau ntawm nws them tus nqi. Kab mob yog qhov tsawg tshaj plaws ntawm tag nrho cov kab kab mob, lawv thaj tsam li 100 nanometers (100 billionths ntawm ib tug Meter) nyob rau hauv ntev. Lawv muaj ob peb noob thiab proteins ntawm nws tus kheej, tias nyob rau hauv thiaj li yuav tsim cov me nyuam, lawv yuav tsum tau ua rau ib tug neeg lwm tus cell qauv. Cov kab mob sib txawv dav nyob rau hauv loj thiab cov duab, tab sis yuav tsum muaj tsawg kawg 10 lub sij hawm loj tshaj cov kab mob. Lawv yog cov tib-celled kab mob uas me nyuam lawv tus kheej. Multicellular cab yuav muaj li loj hais tias lawv muaj peev xwm yuav pom nrog tus liab qab qhov muag. Tapeworms, piv txwv li, yuav ncav cuag ib ntev ntawm 6 meters los sis ntau tshaj. Khoom noj khoom haus thiab dej yog cov feem ntau qhov chaw ntawm cab kis tau tus mob. Txij li thaum feem ntau ntawm peb noj peb noj mov ib hnub twg thiab haus dej thoob plaws hauv lub hnub, lub feem ntawm cov chaw no yog qhov. Tsiaj txhu, zoo li tib neeg, tej zaum yuav kis tus kab mob cab. Thiab lawv yog cov tseem ceeb muaj ntawm cab. Kws txawj ntseeg tau hais tias los ntawm lub 110 lab tus tsiaj dev thiab miv nyob rau hauv peb lub teb chaws ntau tshaj ib nrab tej zaum yuav kis tus kab mob muaj tsawg kawg yog ib tug los yog ntau hom cab. Muab cov ntaub ntawv no, lub peev xwm rau kis tau tus mob ntawm cab kab mob los ntawm cov tsiaj rau tib neeg yog heev. Parasites yog txwv kom muab zais los ntawm cov qauv, daim ntawv no, muaj nuj nqi thiab deev tuition. Cov no muaj xws me kab, roundworms, pinworms thiab tapeworms (nematodes), tapeworms (cestodes) thiab flukes (trematode).

Keeb kwm ntawm foundations

Bovine tapeworm yog suav tias yog ib qho ntawm qhov ntxov tshaj plaws tib neeg cab. Los ntawm tapeworms nws pib mus rau xa mus rau lub caij 1700 ntawd. Txawm li cas los, lub caij nyoog lub neej voj voog ntawm lub bovine tapeworm tau saib nyob rau hauv kom meej nyob rau hauv 1863, thaum nyuj tau txiav txim los ntawm lub direct tswv.

Morphology thiab bovine tapeworm: yees duab

Tus cab muaj hauv daim ntawv ntawm ib tug ntev band-zoo li flattened tapeworm dawb. Nws txoj kab uas hla yog hais txog 6 mus rau 7 millimeters. Tus neeg laus cab feem ntau muaj txog 1000 feem hu ua proglottids. Tsis zoo li scolex nrog 4 suckers, nws yog tus phem lub cev bovine tapeworm. Txhua Proglottids muaj cov txiv neej thiab poj niam me nyuam hauv nruab nrog cev, los ntawm cov uas qe yog ua los ntawm embryos, txhua tus uas muaj ib tug loj ntawm 31-43 micrometers. Lub ncu tus kab mob lub sij hawm kav los ntawm 5 mus rau 12 lub lis piam.

Tej yam kev mob rau muaj kev vam meej kawm tiav ntawm lub neej voj voog

Bovine tapeworm lub neej voj voog muaj xws li ib los yog ntau tshaj intermediate fwjchim luj kawg nkaus. Yus morphological thiab physiological thaj chaw ntawm cov neeg laus cab muaj kev cuam tshuam, nyob rau hauv ib tes, lawv amazing muaj peev xwm los mus ciaj sia nyob rau hauv cov hnyuv ntawm vertebrates, thiab nyob rau lwm yam - lawv muaj peev xwm rau cov me nyuam xeeb ntxwv. Lub neej voj voog ntawm lub bovine tapeworm yog nyuab thiab muaj ib tug xov tooj ntawm qhov tseem ceeb tej yam kev mob rau muaj kev vam meej lub kawm tiav ntawm:

1. Proglottids uas muaj cov qe, tso tawm rau hauv lub cheeb tsam los ntawm cov quav.

2. Cov "cev xeeb tub" feem txeem mus rau hauv lub cev ntawm cov nyuj kis tus kab mob devouring nroj tsuag, yog li lawv nkag mus rau hauv cov hnyuv intermediate party. Enzymes thiab acids pom nyob rau hauv lub gastro-plab hnyuv kua txiv, tawg ib tug tiv thaiv thiab tsim txog li 100,000 qe.

3. Lub qe tsim mus rau hauv kab, uas ua txhaum los ntawm lub plab hnyuv epithelium thiab taug kev los ntawm lub cev ntawm cov nyuj. kab ces nkag mus rau cov nqaij cov ntaub so ntswg, lawv hexacanth sau nrog kua, txoj kev hlwv.

4. Mus ua kom tiav rau txoj lub neej voj voog bovine tapeworm (tswvyim kom meej meej qhia tau hais tias nws) kab mob siav nyuj nqaij yuav tsum tau noj txiv neej (kawg party) rau kev sib cuag nrog nws digestive system. Digestive enzymes muab siab npuab plhaub kab yog tso tawm thiab inverted scolex yog tau tawm los ntawm cov tshuaj ntsiav. Nws yog ces txuas mus rau lub plab hnyuv phab ntsa. Tom qab uas tus kab mob pib loj hlob rau peb lub hlis tej zaum yuav mus txog 5 meters nyob rau hauv ntev. Thaum lub caij ntawm kom loj hlob nws muaj peev xwm yuav tsim proglottids rov qab rau hauv lub neej voj voog ntawm lub bovine tapeworm.

Lub tswvyim ntawm lub neej voj voog

Qhov ntev ntawm tus kab mob mus rau cov neeg laus nyob ntev feem ntau loj loj thiab roos los ntawm 4.5 mus 9 meters. Cov cab bovine tapeworm nyob rau hauv cov hnyuv. Cov neeg mob feem ntau yog muaj ib los yog ob cov neeg. Yuav kom xa mus rau lub phab ntsa ntawm lub hnyuv, tapeworms Siv koj lub taub hau, uas yog hu ua scolex. Lawv muaj nyob nruab nrab ntawm 1,000 thiab 2,000 lub cev feem hu ua proglottids, txhua tus uas muaj los ntawm 80 000 100 000 qe, uas yuav muaj sia nyob ntau lub hlis los yog xyoo nyob rau hauv lub cheeb tsam. Thaum cov tsiaj noj kab mob nroj tsuag kab, qe txeem lawv plab hnyuv phab ntsa, nrhiav cim qhov nyob rau hauv cov nqaij thiab nyob twj ywm muaj nyob rau hauv daim ntawv ntawm cov kua puv hlwv, uas yog rau lawv ib tug tiv thaiv cov tshuaj ntsiav. Yog hais tias cov neeg noj nyoos los yog ib nrab-ci nqaij nyuj nqaij uas muaj cov hlwv, hlwv tsim mus rau hauv neeg laus tapeworms nyob rau hauv 2 lub hlis. Tus neeg laus cab bovine tapeworm yuav nyob ntau tshaj 30 xyoo.

kev faib

Tapeworms, xws li bovine tapeworm (saib duab. Nyob rau hauv kev saib xyuas), mus rau cov chav kawm ntawv Cestoda. Qhov no yog ib pab pawg neeg ntawm cab flatworms, uas muaj xws li txog 5000 hom. Tapeworms muaj nyob thoob plaws lub ntiaj teb no thiab muaj ib tug ntau yam ntawm ntau thiab tsawg pab los ntawm lub 1 hli mus rau ntau tshaj 15 m. Lawv yog cov nrog cab ntawm tej hom ntawm invertebrates thiab tag nrho cov vertebrate hom, xws li tib neeg, tsiaj nyeg. Ib txhia cab nyob nyias, lwm leej lwm tus yuav tsum tau ib tug los yog ob peb intermediate fwjchim luj kawg nkaus thaum lub sij hawm lawv lifecycle. Tus qauv ntawm bovine tapeworm, zoo li lwm yam tapeworms yuav bilaterally yam (m. E. Muaj txoj cai thiab sab laug sab zoo tib yam). Ib txhia muaj ib tug ntev ya, lwm leej lwm tus tau hais lub taub hau, raws li los ntawm ib tug xov tooj ntawm zoo tib yam feem hu ua proglottids.

tapeworm lub cev

bovine tapeworm lub cev yog muaj tuaj raws li ib tug xov, raws li ib tug flattened downwards thiab bilaterally (symmetrically). Nws yog tsiag ntawv los ntawm xub ntiag ntawm peb kab khaubncaws sab nraud povtseg (ectoderm, mesoderm thiab endoderm), ua pa thiab lub plawv tshuab tsis tsim. Lub cev yog them nrog ib tug nyuaj tsis tau saj zawg zog cuticle, kuj tsis muaj lub plawv thiab ua pa tshuab, tab sis muaj ib tug ob sab sib dho lub paj hlwb. Txawm loj tapeworms muaj yuav luag nkaus ntawm lub tsev me nyuam lug nrog ib tug me me "lub taub hau" rau mounting. Cov laus feem ntau yog muaj tib lub cev qauv. Cov yav tas muaj ib tug scolex, caj dab, thiab ib tug loj tus naj npawb ntawm proglottids, uas yog tej zaum kuj hu ua feem. Caj dab tapeworm yog ib tug zoo txhais, luv luv, nqaim thiab articulate lub cheeb tsam qab lub scolex. Nws muaj ib tug kuj undifferentiated loj ntawm lub hlwb. Qhov no yog qhov chaw ntawm kev loj hlob thiab extension ntawm lub Scope ntawm yim khiav lag luam, vim nws yog tshiab proglottids tsim no. Tus qauv kuj muaj xws li bovine tapeworm paj rings thiab sab qab haus huv extending raws tag nrho ntev ntawm lub cev. Pre-nqis nyob rau hauv cov hnyuv, zaub mov yog qhov tseem ceeb ntawm cov khoom noj khoom haus rau ib cov saw. Tag nrho cov nto ntawm lub cev ntawm tus kab mob yog heev zog los ntawm lub xub ntiag ntawm microvilli.

tu tub tu kiv

Zoo li lwm yam kev, lub neej voj voog ntawm lub bovine tapeworm muaj raws li nws hom phiaj tseem ceeb lub continuation ntawm ib tug zoo. Tapeworms yog hermaphrodites, piv txwv li. A. Muaj cov txiv neej thiab poj niam kev sib deev kabmob nyob rau hauv ib lub cev, thiab txiv neej maturation los thawj, yog li rau pem hauv ntej ib feem ntawm lub mature proglottids muaj tsuas ntawm cov txiv neej qhov chaw mos kabmob. Yog li, lawv yog cov tag nrho tu tub tu kiv tsev uas tsim qe los yog los ntawm nws tus kheej-fertilization los yog tus ntoo khaub lig-fertilization nrog rau lwm cov paub tab proglottids. Tom qab ntawd, disconnect los ntawm tus so ntawm lub cev. Qhov no tshwm sim yog siv los txo qhov ntev ntawm tus kab mob. Tsim embryo mus nrog tus tswv tsev quav.

Tej yam tshwm sim, cov tsos mob thiab tus mob ntawm kab mob

Kab mob nrog bovine saw yog nrog los ntawm tsuas tshwm sim me me, xws li raws plab, quav tawv, tsam plab, mob plab thiab poob phaus. Yuav ua li cas cov kws kho mob kuaj thiab kho cov kab mob? Qe thiab proglottids yuav muaj nyob rau hauv quav kuaj thaum lub sij hawm me me kev xeem. Yuav kom txiav txim raws nraim li cas tapeworm yog bovine los yog npua, nws yog tsim nyog los tshem tawm thiab xyuas lawv scolexes. Qhov no yog tsis tshua muaj ua, vim hais tias cov kws kho mob feem ntau yog muab tib tshuaj rau ob hom kab mob. Helminth kab nyob rau hauv cov ntaub so ntswg hlwv ntawm ntaub so ntswg muaj peev xwm yuav ntes tau los ntawm X-hluav taws xob diffraction txoj kev, thiab computer tomography (hlwb hlwv). Xyuas yog nqa tawm kuj nyob rau ntawm 3 thiab 6 lub hlis tom qab kev kho mob kom paub tseeb tias tus kab mob no yuav ploj mus tag.

Bovine tapeworm ua teniarinhoza

Teej tug mus rau cov pab pawg neeg tapeworms bovine tapeworm yog heev loj nrws, uas ua rau ib tug mob hu ua teniarinhoza. Nws tau txais nws lub npe los ntawm qhov tseeb hais tias, raws li intermediate fwjchim luj kawg nkaus, nws siv nyuj. Tib neeg yog tus tsuas yog tseem muaj. Tus kab mob yog feem ntau asymptomatic. Rau hauv loj heev theem nws tau tej zaum kuj ua rau o ntawm lub appendix thiab cov kua tsib ducts. Kab mob kuj yuav nyuaj rau lub cev. Tshwj xeeb tshaj yog no: tej yam kab mob tej zaum yuav muaj siv rau lub noj qab haus huv ntawm cov tub ntxhais me nyuam. Nqaij nyuj tapeworm kab mob yog muaj nyob qhov txhia chaw thiab yog tus ntau nyob rau hauv teb chaws Africa, Eastern Europe, Latin America thiab lub Philippines.

kev kho mob

Kev kho mob muaj feeb nyob rau ib tug tshwj xeeb kev kho mob tshuaj. Nws yog ib, raws li ib tug txoj cai, "fenasal", "Praziquantel", "Niclosamide". Endoscopic kho mob yog cov thawj coj ntawm cov tshuaj ncaj qha mus rau hauv cov hnyuv. Qhov no ua rau cov cab mus kiag li ntuj txoj kev.

kev tiv thaiv

Tapeworms yuav ua rau plab hnyuv kab mob thiab lwm yam mob loj heev pathologies. Kab mob ntawm bovine saw yuav tiv thaiv tau los ntawm meej ua noj ua haus ntawm cov nqaij, qhov no saib kuas tias txhua yam tapeworm hlwv lawm. Xwb, nws yog ua tau kom khov rau hauv cov nqaij thiab tuav nws nyob rau ib kub hauv qab no -5 ° C rau ob peb hnub. Kev tiv thaiv kab mob nyob rau hauv nyuj kuj yog ib tug noj mov nyob rau hauv tej qhov chaw uas nroj tsuag yuav tsis tau kab mob los ntawm cov quav ntawm tib neeg. Txhim khu kev qha txoj kev tiv thaiv teb kis yog mus ntes tus kab mob nyuj. Nws tseem ceeb heev kom muaj zoo tus kheej kev tu cev thiab muaj kev huv, uas yuav tsis tu ncua tes ntxuav, tshwj xeeb tshaj yog tom qab siv chav dej. Zoo Tsim Nyog kev ntxuav tu yog qhov tseem ceeb rau xa thoob ntiaj teb kab mob.