2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Schwann hlwb tseem hu ua neurolemmocytes, thiab muaj ob hom kev tsim. Lawv tuaj yeem tsim cov ntaub qhwv tuab ntawm myelin lossis tsim cov plasma daim nyias nyias folds nyob ib ncig ntawm peripheral axons thoob plaws hauv PNS. Qhov twg Schwann cell npog ib qho axon, sab nrauv Schwann cell nto hu ua neurilemma.
Cov hlwb dab tsi tsim cov neurilema?
Schwann cell, tseem hu ua neurilemma cell, ib qho ntawm cov hlwb nyob rau hauv lub paj hlwb peripheral uas tsim cov myelin sheath nyob ib ncig ntawm neuronal axons. Schwann hlwb raug hu ua German physiologist Theodor Schwann, uas nrhiav tau lawv nyob rau hauv lub xyoo pua 19th.
Neurilema tsim li cas?
Kev tsim. Neurilemma: Neurilemma yog tsim los ntawm the Schwann hlwb. Myelin Sheath: Myelin yog zais los ntawm Schwann hlwb lossis oligodendrocytes.
Cov hlwb twg tsim cov myelin wrappings hauv qaum qaum?
Schwann cells ua myelin hauv lub paj hlwb peripheral (PNS: paj hlwb) thiab oligodendrocytes hauv nruab nrab paj hlwb (CNS: hlwb thiab qaum qaum). Hauv PNS, ib lub xovtooj ntawm Schwann tsim tau ib leeg myelin sheath (Daim duab 1A).
Neurilema yog dab tsi?
Kev Kho Mob Txhais ntawm neurilemma
: txheej txheej nyob ib puag ncig Schwann cell ntawm myelinated axon. - hu ua paj ntaub, Schwann's sheath, sheath ntawm Schwann.
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.
Leej twg tsim tus kab mob ntau hom?
thawj tus kab mob sib koom ua ke yog tus kab mob Ghostball. Nws tau tshawb pom los ntawm Fridrik Skulasonhauv 1989. Leej twg nrhiav tau tus kab mob multipartite? Tus kab mob no tau tshawb pom thaum Lub Kaum Hli 1989, los ntawm Friðrik Skúlason.
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.
Cov tshuaj kab kab mob puas yuav ua haujlwm rau cov kab mob sib kis?
Bayer Drontal Broad Spectrum Dewormer zoo tshem tawm ntau hom kab mob hauv plab nrog rau cov kab mob tapeworms, hookworms, thiab roundworms. Kuv puas tuaj yeem kho kuv tus miv rau kab kab kab kab thiab kab kab sib chaws tib lub sijhawm?
