Nā nīnau hoʻohālike e kūkākūkā ana i ke ʻano o nā ʻiʻo striated
He ʻāpana koʻikoʻi nā ʻiʻo o ka ʻōnaehana musculoskeletal i loko o ke kino o ke kanaka, e hiki ai ke neʻe, kākoʻo i ke kūpaʻa, a me ke kuleana i nā hana physiological like ʻole. ʻEkolu ʻano ʻiʻo i loko o ke kino o ke kanaka: ʻiʻo laumania, ʻiʻo puʻuwai, a me ka ʻiʻo striated. Ke kālele nei kēia ʻatikala i ke ʻano o ka ʻiʻo striated, i ʻike ʻia hoʻi he ʻiʻo skeletal, a pehea e hana ai. I mea e kōkua ai i kou hoʻomaopopo ʻana, e hāʻawi pū mākou i nā pilikia laʻana a me nā kūkākūkā e pili ana i ka ʻiʻo striated.
ʻAno ʻiʻo striated
Loaʻa i ka ʻiʻo striated kona inoa mai kona ʻano kaha a striated paha ke nānā ʻia ma lalo o kahi microscope. He ʻano hoʻonohonoho maikaʻi ko ka ʻiʻo striated a he mau olonā ʻiʻo lōʻihi i kapa ʻia ʻo myofibrils. Hana ʻia kēlā me kēia myofibril i nā ʻāpana liʻiliʻi i kapa ʻia ʻo sarcomeres, ʻo ia nā ʻāpana hana liʻiliʻi loa o ka ʻiʻo striated.
ʻO kēlā me kēia sarcomere he ʻano o nā kāʻei ʻeleʻele a me ka mālamalama i hoʻokumu ʻia e ka hoʻonohonoho ʻana o nā protein actin a me myosin. Hiki i kēia mau protein ke ʻaelike a hoʻomaha i nā ʻiʻo. He protein filament lahilahi ʻo Actin, ʻoiai ʻo myosin he filament mānoanoa i loaʻa ma waenakonu o ka sarcomere. ʻO kēia pilina ma waena o ka actin a me ka myosin ka mea e hiki ai ke ʻaelike ʻiʻo.
Hana o ka ʻiʻo striated
He kuleana koʻikoʻi ko ka ʻiʻo striated i nā hana kino like ʻole, e like me ka neʻe ʻana a me ka mālama ʻana i ke kūlana. ʻAʻole e like me ka ʻiʻo laumania, ka mea e hana me ka makemake ʻole (me ka ʻike ʻole), hana ka ʻiʻo striated me ka makemake ʻole (ma lalo o ka mana hoʻomalu). Kauoha ka ʻōnaehana nerve somatic i nā ʻūmiʻi ʻiʻo iwi e hana i ka neʻe ʻana.
ʻOki ʻana o nā ʻiʻo striated
Ke loaʻa i ka ʻiʻo striated kahi hōʻailona mai ka ʻōnaehana nerve, hoʻokuʻu ʻia nā ion calcium mai ka reticulum sarcoplasmic i loko o ka sarcoplasm. He mea nui kēia mau ion calcium no ka launa pū ʻana ma waena o ka actin a me ka myosin, ka mea e hoʻoheheʻe ai nā filament actin ma luna o nā filament myosin, e hoʻopōkole ana i ka sarcomere a e hoʻopaʻa ai ka ʻiʻo.
Nā Nīnau a me ke Kūkākūkā
Eia kekahi mau nīnau hoʻohālike e pili ana i ke ʻano, ka hana, a me ke ʻano o ka ʻūlū ʻana o nā ʻiʻo striated me kā lākou mau kūkākūkā e hoʻoikaika i kou ʻike.
Nīnau 1:
E wehewehe i nā ʻokoʻa nui ma waena o nā ʻiʻo striated a me nā ʻiʻo laumania, ma ke ʻano o ke ʻano a me ka hana.
Kūkākūkā:
He ʻokoʻa nā ʻano a me nā hana o nā ʻiʻo striated a me nā ʻiʻo laumania. He ʻano striated a ʻōniʻoniʻo paha ko nā ʻiʻo striated no ka mea ua haku ʻia lākou me nā sarcomeres e loaʻa ana nā filaments actin a me myosin i hoʻonohonoho pono ʻia. I ka hoʻohālikelike ʻana, nele nā ʻiʻo laumania i kēia mau striations a i ʻole nā kaha no ka mea nele lākou i nā sarcomeres i hoʻonohonoho pono ʻia. Hana nā ʻiʻo striated me ka ʻike ʻole (me ka manawaleʻa) a pili i nā neʻe kino ʻike, e like me ka hele wāwae a i ʻole ka hāpai ʻana i nā mea. ʻO nā ʻiʻo laumania, ma ka ʻaoʻao ʻē aʻe, hana me ka makemake ʻole, e hoʻoponopono ana i nā hana ʻike ʻole e like me ka neʻe ʻana o ke ala ʻai a i ʻole ka paʻa ʻana o nā kīʻaha koko.
Nīnau 2:
He aha ka sarcomere a he aha kona kuleana i ka hoʻemi ʻana o nā ʻiʻo striated?
Kūkākūkā:
ʻO ka sarcomere ka ʻāpana hana a me ka hana liʻiliʻi loa o ka ʻiʻo striated. Loaʻa iā ia nā filaments protein actin a me myosin, i hoʻonohonoho ʻia ma ke ʻano o nā kāʻei ʻeleʻele a me ka mālamalama. Ke ʻūlū kahi ʻiʻo, paheʻe nā filaments actin a me myosin ma mua o nā filaments myosin. ʻO kēia pōkole o ka sarcomere e ʻae ai i ka ʻiʻo e ʻūlū.
Nīnau 3:
He aha ke kuleana o nā iona calcium i ke kaʻina hana o ka ʻūmiʻi ʻana o nā ʻiʻo striated?
Kūkākūkā:
He kuleana koʻikoʻi ko nā iona kalipuna i ka ʻūmiʻi ʻana o nā ʻiʻo striated. Ke hōʻailona ka ʻōnaehana nerve i ka hoʻomaka ʻana o ka ʻūmiʻi ʻana, hoʻokuʻu ka reticulum sarcoplasmic i nā iona kalipuna i loko o ka sarcoplasm. A laila hoʻopaʻa kēia mau iona kalipuna i ka protein troponin i loaʻa ma nā filaments actin, e hana ana i kahi hoʻololi conformational e hoʻoneʻe i ka protein tropomyosin a hōʻike i nā wahi hoʻopaʻa ma nā filaments actin. ʻAe kēia i nā poʻo myosin e hoʻopaʻa i ka actin a hoʻomaka i ke kaʻina hana ʻūmiʻi ma o ka hana ATPase.
Nīnau 4:
No ke aha i kapa ʻia ai nā ʻiʻo striated he mau ʻiʻo iwi a pehea lākou e pili ai i nā iwi?
Kūkākūkā:
Ua kapa pinepine ʻia nā ʻiʻo striated he mau ʻiʻo iwi no ka mea ua hoʻopili pinepine ʻia lākou i nā iwi ma o nā tendon. Ke ʻūlū nā ʻiʻo striated, hana lākou i nā ikaika e hoʻoneʻe ai i nā iwi. No laila, hana pū nā ʻiʻo striated a me nā iwi e hana i nā neʻe kino i hoʻonohonoho ʻia. Hoʻohana ʻia ka ikaika i hana ʻia e ka ʻūlū ʻana o nā ʻiʻo e hoʻoneʻe i nā iwi, e hiki ai i nā hana o kēlā me kēia lā e like me ka hele wāwae, ka holo ʻana, ka hāpai ʻana, a me ka huki ʻana.
Nīnau 5:
He aha ka mea e hana ʻia i nā ʻiʻo striated ke make ke kino?
Kūkākūkā:
Ma hope o ka make ʻana, hoʻokuʻu ʻia nā ion calcium i mālama mau ʻia i loko o ka reticulum sarcoplasmic ma muli o ka nalowale o ka hiki o ke kelepona ke mālama i ka gradient ion. Hoʻoulu kēia i nā ʻūmiʻi mau o nā ʻiʻo, kahi kūlana i ʻike ʻia ʻo rigor mortis. Ke hoʻomau nei kēia kūlana a hiki i ka hoʻomaka ʻana o nā protein i loko o nā ʻiʻo e wāwahi ma ke kaʻina hana o ka palaho.
Ma ka hoʻomaopopo ʻana i nā ʻano hana kumu o nā ʻiʻo striated a me ka hoʻokumu ʻana i nā pilikia e pili ana, hiki iā mākou ke hoʻoikaika i ko mākou ʻike i ka hana koʻikoʻi o kēia mau ʻiʻo i ka neʻe ʻana o ke kanaka a me ke ahonui. He mea nui kēia ʻike ʻaʻole wale ma nā ʻano hoʻonaʻauao akā ma nā noi hana, me ke olakino a me ka hoʻoponopono kino.
