Video: Puas yog qog nqaij hlav ntawm cov hlab ntsha embryonic?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Qhov no yog hais txog qhov chaw nyob cov qog nqaij hlav uas tsis tau ntxeem cov nyob ib sab. A (n) _oma yog mob qog noj ntshav muab los ntawm embryonic paj cov ntaub so ntswg. Qhov chaw _ yog mob qog noj ntshav tshwm sim los ntawm qog hlwb . Neo_ txhais tau tias yog kev loj hlob tshiab thiab hais txog kev ua siab zoo los yog qog nqaij hlav.
Ib yam nkaus, lo lus dab tsi feem ntau muab rau cov qog nqaij hlav uas tsim los ntawm cov qe embryonic?
Teratoma. qog tau los ntawm noob hlwb (feem ntau yog hauv qhov quav thiab zes qe menyuam), muaj embryonic hlwb uas txawv rau hauv cev xeeb tub txheej txheej kab mob: ectoderm, mesoderm, thiab endoderm.
Ib sab saum toj no, puas yog cov qog ua qog qog noj ntshav? Siab phem qog yog mob qog noj ntshav . Lawv tsim thaum twg hlwb loj hlob tswj tsis tau. Yog tias hlwb txuas ntxiv mus thiab kis mus, tus kab mob tuaj yeem ua rau muaj kev phom sij rau lub neej. Cov cov qog nqaij hlav cancer uas txav mus rau lwm qhov ntawm lub cev yog tib yam li cov thawj, tab sis lawv muaj peev xwm nkag mus rau lwm lub cev.
Ib yam li ntawd, koj yuav nug, dab tsi yog cov qog embryonic?
Cov qog nqaij hlav hauv embryonic . Cov qog nqaij hlav hauv embryonic yog tsim los ntawm degeneration ntawm cov ntaub so ntswg thaum lub sij hawm cev xeeb tub kev loj hlob ntawm tus menyuam thiab tsim cov khoom phem qog . Neuroblastomas yog cov khoom siv feem ntau qog sab nraum lub paj hlwb hauv menyuam yaus, suav txog li xya feem pua ntawm txhua tus mob qog noj ntshav.
Nws txhais li cas thaum mob qog noj ntshav tau kaw?
Encapsulated txhais tau tias tias lawv nyob sab hauv ntawm lub qhov quav, lossis zoo li hauv lub tsiav tshuaj. Tsis kaw txhais tau tias muaj ib tug xov tooj ntawm mob qog noj ntshav cov cell tawm ntawm qhov nodule.
Pom zoo:
Yuav ua li cas feem pua ntawm cov qog nqaij hlav qog nqaij hlav qog noj ntshav?
Kev Kho Mob: Kev kho hluav taws xob
Puas yog Neuroglia tsim cov hlab ntsha hauv cov hlab ntsha hauv nruab nrab cov hlab ntsha?
Muaj plaub hom neuroglia pom nyob hauv nruab nrab lub paj hlwb: Astrocytes - tswj cov ntshav lub hlwb teeb meem thiab khaws cov tshuaj ib puag ncig los ntawm kev siv cov ions rov qab thiab cov tshuaj xa xov mus rau lub cev. Oligodendrocytes - myelinate axons nyob rau hauv lub hauv nruab nrab lub paj hlwb thiab muab tag nrho cov txheej txheem txheej txheem
Vim li cas peb thiaj sau cov ntshav los ntawm cov hlab ntsha thiab tsis yog los ntawm cov hlab ntsha?
Cov leeg yuav tsum tau li qub kom cov ntshav ntws mus rau lub plawv. Theses li qub yog qhov tshwj xeeb hauv ob txhais ceg thiab caj npab. Lawv tawm tsam lub ntiajteb txawj nqus los tiv thaiv cov ntshav rov qab los. Cov hlab ntsha tsis xav tau li qub vim tias lub siab los ntawm lub plawv ua kom cov ntshav ntws los ntawm lawv mus rau ib qho
Puas yog cov qog nqaij hlav qog nqaij hlav nyuaj?
Shotty feem ntau siv los piav txog qhov kev xav ntawm cov qog nqaij hlav (cov qog qog nqaij hlav) thaum lawv palpated (xws li) los ntawm daim tawv nqaij. 'Shotty' lymph nodes yog cov uas tsis yog nyuaj thiab puag ncig tab sis kuj me me thiab tsis muaj qhov tshwm sim
Puas yog qog nqaij hlav qog lossis cov qog ua kua?
Ib qho txawv txav ntawm cov ntaub so ntswg uas feem ntau tsis muaj cov hlwv lossis cov kua dej. Cov qog nqaij hlav tuaj yeem yog benign (tsis yog mob qog noj ntshav), lossis malignant (cancer). Piv txwv ntawm cov qog nqaij hlav yog sarcomas, carcinomas, thiab lymphomas. Leukemias (cov ntshav qog ntshav) feem ntau tsis tsim cov qog nqaij hlav