Thaum cov leeg nqaij contraction qhov ntawm sarcomere uas luv yog?

Cov txheej txheem:

Thaum cov leeg nqaij contraction qhov ntawm sarcomere uas luv yog?
Thaum cov leeg nqaij contraction qhov ntawm sarcomere uas luv yog?
Anonim

A sarcomere yog txhais raws li qhov kev ncua deb ntawm ob qhov sib law liag Z discs lossis Z kab; Thaum cov leeg sib cog lus, qhov kev ncua deb ntawm Z discs raug txo. H thaj tsam- thaj tsam nruab nrab ntawm thaj tsam A-tsuas yog cov tuab tuab thiab luv luv thaum lub sijhawm cog lus.

Dab tsi ntawm cov leeg nqaij luv thaum lub sij hawm contraction?

Rau cov leeg nqaij kom sib cog lus, tus sarcomere yuav tsum luv. Txawm li cas los xij, tuab thiab nyias filaments-cov khoom ntawm sarcomeres-tsis luv. Hloov chaw, lawv swb los ntawm ib leeg, ua rau lub sarcomere luv thaum cov filaments tseem nyob ntev.

Tus qauv ntawm tus sarcomere luv luv thaum lub sij hawm cov leeg nqaij contraction quizlet?

Thick filaments pom nyob rau hauv nruab nrab ntawm lub sarcomere, overlapped los ntawm nyias filaments hla ib leeg thaum contraction txo qhov kev ncua deb ntawm Z kab, shortening lub sarcomere. Koj nyuam qhuav kawm 50 nqe lus!

Qhov twg ob thaj tsam ntawm sarcomere luv luv thaum cov leeg cog lus quizlet?

Txhua pawg thiab thaj chaw ntawm cov sarcomere luv thaum lub sij hawm contraction tsuas yog A-band, uas yog tag nrho ntev ntawm cov tuab tuab.

Yuav ua li cas cov tshuaj yuav tsum muaj nyob rau hauv ib tug sarcomere Yuav kom cov leeg nqaij contraction tshwm sim?

Yuav kom cov pob txha pob txha tshwm sim;

  • Yuav tsum muaj neuralkev txhawb zog.
  • Yuav tsum muaj calcium hauv cov leeg nqaij.
  • ATP yuav tsum muaj rau lub zog.

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