![Dab tsi yog qhov microscopic anatomy ntawm Myofiber? Dab tsi yog qhov microscopic anatomy ntawm Myofiber?](https://i.answers-medical.com/preview/medical-health/13960948-what-is-the-microscopic-anatomy-of-a-myofiber-j.webp)
Video: Dab tsi yog qhov microscopic anatomy ntawm Myofiber?
![Video: Dab tsi yog qhov microscopic anatomy ntawm Myofiber? Video: Dab tsi yog qhov microscopic anatomy ntawm Myofiber?](https://i.ytimg.com/vi/FqHSopMUVaM/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Anatomical cov ntsiab lus ntawm microanatomy
A myofibril (tseem hu ua nqaij fibril) yog lub hauv paus qws zoo li chav ntawm cov leeg nqaij. Cov leeg yog tsim los ntawm tubular hlwb hu ua myocytes, lub npe hu ua cov leeg nqaij fibers hauv cov leeg nqaij striated, thiab cov hlwb no muaj ntau cov chains ntawm myofibrils.
Tsuas yog li ntawd, Myofiber yog dab tsi?
A myofiber yog ib leeg nqaij leeg uas muaj ntau lub hlwb (saib daim duab 1, hauv qab). Lub cev, lawv muaj qhov loj me los ntawm ib puas microns nyob rau hauv txoj kab uas hla thiab ob peb millimeters nyob rau hauv ntev mus rau ob peb puas microns thoob plaws thiab ob peb centimeters nyob rau hauv ntev. Cov zaub mov tau muab coj los rau hauv lub cell thiab oxidized los tso lub zog.
Tom qab ntawd, lo lus nug yog, dab tsi yog cov ntsiab lus ntawm Myofiber? Cov myofibrils yog tsim los ntawm tuab thiab nyias myofilaments, uas pab muab cov nqaij ntshiv zoo li. Cov tuab filaments yog tsim los ntawm myosin, thiab cov ntaub nyias nyias feem ntau yog actin, nrog rau ob lwm cov nqaij protein, tropomyosin thiab troponin.
Ib tus kuj tseem yuav nug tau, dab tsi yog lub cev me me ntawm cov leeg pob txha?
Cov microscopic anatomy ntawm cov leeg pob txha yog tsim los ntawm: endomysium, epimysium, fascicle, fiber, myofilament, myofibril, perimysium, sarcolemma, sarcomere, sarcoplasm thiab tendon. Txoj kab M nyob rau hauv nruab nrab ntawm H cheeb tsam muaj cov kab me me uas tuav cov filaments tuab ua ke.
Qhov txawv ntawm Myofiber thiab Myofibril yog dab tsi?
Raws li cov npe qhov sib txawv ntawm myofibril thiab myofiber yog tias myofibril yog (cov leeg nqaij) cov cylindrical organelles, pom hauv cov leeg nqaij, uas yog chav sib cog lus ntawm cov leeg thaum myofiber yog nqaij fibers.
Pom zoo:
Dab tsi yog qhov kev nkag siab tsis tu ncua thiab dab tsi yog qhov loj me me qhov ntev xim tsis tu ncua zoo li qub)?
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Kev nkag siab tsis tu ncua, tseem hu ua qhov tsis sib xws, lossis qhov tshwm sim tsis tu ncua, kev nyiam tsiaj thiab tib neeg kom pom cov khoom paub zoo li muaj tus qauv zoo, qhov loj me, xim, lossis qhov chaw tsis hais txog kev hloov pauv ntawm lub kaum sab xis ntawm kev xav, nrug deb, lossis teeb pom kev zoo
Qhov tseem ceeb ntawm qhov sib txawv ntawm tuab ntawm phab ntsa ntawm aorta yog dab tsi?
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Dab tsi yog qhov tseem ceeb ntawm qhov sib txawv ntawm tuab ntawm phab ntsa ntawm aorta thiab phab ntsa ntawm lub ntsws ntsws? Cov phab ntsa tuab ntawm aorta tso cai kom tiv taus siab dua ntawm cov ntshav tso tawm los ntawm lub ventricle
Dab tsi yog qhov txiaj ntsig ib txwm rau PaO 2 Dab tsi yog qhov txiaj ntsig rau kev txiav txim siab qhov hnyav ntawm hypoxemia?
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Zoo li feem ntau qhov kev kho mob ib txwm muaj txiaj ntsig thiab ntau yam, lub ntsiab lus tuaj yeem sib txawv me ntsis, tab sis feem ntau cov ntsiab lus hauv qab no siv: Ua rau me me hypoxemia: PaO2 = 60 txog 79 mmHg. Qhov nruab nrab hypoxemia: PaO2 = 40 txog 59 mmHg. Hypoxemia hnyav: PaO2 <40 mmHg
Qhov txawv ntawm Myofiber thiab Myofibril yog dab tsi?
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Raws li cov npe sib txawv ntawm myofibril thiab myofiber yog tias myofibril yog (nqaij leeg) cylindrical organelles, pom hauv cov leeg nqaij, uas yog chav sib cog lus ntawm cov leeg thaum myofiber yog cov leeg nqaij
Dab tsi yog qhov txawv ntawm qhov tseeb qhov pib thiab qhov sib txawv qhov pib?
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Qhov pib tsis txaus yog qhov tsawg kawg ntawm kev txhawb siab xav tau rau ib tus neeg kom pom qhov kev txhawb siab 50 feem pua ntawm lub sijhawm. Qhov sib txawv ntawm qhov sib txawv yog qhov sib txawv me tshaj hauv kev txhawb nqa uas tuaj yeem kuaj pom 50 feem pua ntawm lub sijhawm