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10.13: Maswali ya Kiungo cha Maingiliano

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    184360

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    1.

    Tazama video hii ili ujifunze zaidi kuhusu macro- na microstructures ya misuli ya mifupa. (a) Majina ya “pointi za makutano” kati ya sarcomeres ni nini? (b) Majina ya “subunits” ndani ya myofibrils ambayo huendesha urefu wa nyuzi za misuli ya mifupa? (c) Je, ni “pembe mbili za lulu” zilizoelezwa kwenye video? (d) Ni nini kinatoa fiber misuli skeletal muonekano wake striated?

    2.

    Kila fiber misuli skeletal hutolewa na neuroni motor katika NMJ. Tazama video hii ili ujifunze zaidi kuhusu kinachotokea kwenye makutano ya neuromuscular. (a) Ufafanuzi wa kitengo cha magari ni nini? (b) Ni tofauti gani ya miundo na kazi kati ya kitengo kikubwa cha magari na kitengo kidogo cha magari? Je, unaweza kutoa mfano wa kila mmoja? (c) Kwa nini neurotransmitter acetylcholine imeharibiwa baada ya kumfunga kwa receptor yake?

    3.

    Kuondolewa kwa ions ya kalsiamu huanzisha vipande vya misuli. Tazama video hii ili ujifunze zaidi kuhusu jukumu la kalsiamu. (a) “T-tubules” ni nini na jukumu lao ni nini? (b) Tafadhali pia kuelezea jinsi maeneo ya kisheria ya kitendo yanapatikana kwa kuvuka kuunganisha na vichwa vya myosin wakati wa kupinga.