2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kuru yog ib yam kab mob tsawg heev. Nws yog tshwm sim los ntawm cov kab mob sib kis (prion) pom nyob rau hauv cov kab mob hauv tib neeg lub hlwb. Kuru tau pom ntawm cov neeg los ntawm New Guineauas tau xyaum ua hom neeg cannibalism uas lawv tau noj cov hlwb ntawm cov neeg tuag ua ib feem ntawm kev ntees tuag.
Kuru hu ua tam sim no?
Tsoomfwv kev poob siab ntawm kev coj noj coj ua ua rau muaj tus kabmob txuas ntxiv, uas tam sim no feem ntau ploj mus. Kuru belongs rau cov kab mob sib kis hu ua transmissible spongiform encephalopathies (TSEs), tseem hu ua kab mob prion.
Puas muaj tshuaj kho tau kuru?
Kuru tsis paub kho. Nws feem ntau tuag hauv ib xyoos ntawm kev cog lus. Kev txheeb xyuas thiab kev kawm ntawm kuru tau pab nrog kev tshawb fawb txog ntau txoj hauv kev. Nws yog thawj tus kab mob neurodegenerative uas tshwm sim los ntawm tus kab mob.
Thaum twg tus kab mob kuru nrhiav tau?
Kuru yog kis tau tus kab mob spongiform encephalopathy (TSE), uas tau mus txog kev sib kis sib kis hauv xyoo 1950 hauv Papua New Guinea ntawm pawg neeg Fore. Thaum nws tau piav qhia thawj zaug hauv 1957, tus kab mob tau tshwm sim hauv kwv yees li 1% ntawm cov pejxeem ntawm ntau dua 35 000 tus neeg.
Vim li cas cov mob tshiab ntawm kuru tseem raug tshaj tawm?
Kev txwv tsis pub coj mus rau kev coj noj coj ua ntawm endocannibalism nyob rau xyoo 1950 tau ua rau muaj kev poob qis hauv kev sib kis, nrog rau ob peb kis tseem tshwm sim vim kuru ntevmuaj peev xwm incubation lub sij hawm, uas muaj peev xwm tshaj 50 xyoo.
Pom zoo:
Thaum muab piv cov kab kab kab thiab cov kab ntsig flatworms qhov twg muaj tseeb?
Ib tug flatworm muaj nyias, dorsoventrally flattened lub cev. Roundworms yog ntau cylindrical hauv cov duab thiab tapered mus rau qhov zoo ntawm ib kawg. Ib yam li ntawd, cov kab mob roundworms muaj ib txheej txheej txheej hu ua cuticle uas lawv tau rov ua dua thoob plaws hauv lawv lub neej thiab thaum lawv loj hlob.
Nyob rau hauv kab mob kis kab mob tus yam ntxwv mob qog nqaij hlav yog?
Nyob rau hauv mob qog noj ntshav, cov qe ntshav liab yog zoo li cov kab mob los yog lub hli hli. Cov hlwb txhav, nplaum nplaum no tuaj yeem daig hauv cov hlab ntsha me, uas tuaj yeem ua rau qeeb lossis thaiv cov ntshav ntws thiab oxygen mus rau qhov chaw ntawm lub cev.
Cov kab kab kab kab kab ua kab mob txaus ntshai npaum li cas?
Nyob rau hauv peb thiab tom ntej instars ntawm lawv txoj kev loj hlob, Pine processionary caterpillars yog mob heev rau daim tawv nqaij ntawm tib neegthiab lwm yam tsiaj. Kev sib cuag yooj yim nrog cov plaub hau ntawm kab ntsig tuaj yeem ua rau pob khaus hnyav (urticaria) thiab khaus qhov muag, thiab qee tus neeg yuav muaj kev fab tshuaj.
Nyob rau hauv qhov ntxa kab mob cov tshuaj tiv thaiv kab mob khi rau?
Nyob rau hauv Graves disease, lub cev tiv thaiv kab mob tsim cov tshuaj tiv thaiv rau the TSH receptor. Cov tshuaj tiv thaiv no khi rau thiab txhawb nqa TSH receptors pom nyob rau hauv cov thyroid follicular hlwb, ua rau ntau ntau synthesis thiab secretion ntawm cov thyroid hormones.
Nyob thaum lub sij hawm tu cov kab mob kab mob no nyob qhov twg?
PI (Lub Chaw Saib Xyuas Kev Loj Hlob) - Ntawm no cov niam txiv ntawm kev lag luam nteg tau rov tsim kho. (3) Grainage: Cov chaw tsim khoom uas tsis muaj kab mob coj mus muag cov noob raug tsim tawm hauv huab hwm coj los muab rau rov qab hu ua Grainages.
