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69205017-Otot

Jun 01, 2018

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    OTOT

    Drs. ARIF KUSWIRASASONOJL. SULAWESI UTARA IA/7 (0321)862700

    E-m !" # r!$%&s'!r * + ., .!

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    BiologyITSTRAININ *r! + 200 4r r m S & ! 5! " ! ITS S&r *

    SISTEM MUSKULARIS

    Gerak salah satu ciri hewan

    Otot berperan dalam sistem gerakdidukung struktur yang kuat tapi lentur.

    Materi intraselualar yang didominasi oleh

    flamen-flamen aktin dan myosin kontraksi dan relaksasi)

    Jika semua unit motoris secara bersamaan berkontraksi sehingga mampu menarik tulang

    yang berhubungan dengannya, maka terjadisuatu gerakan.

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    BACK

    http://dani%20otot.ppt/http://dani%20otot.ppt/
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    BACK

    a. Sarkolemab. Sarkoplasma,c. Miofbriltersusun atasFilamen(m oflamen! Aktin"an Miosin". Mitokon"ria

    e. Retikulumsarkoplasmik

    http://dani%20otot.ppt/http://dani%20otot.ppt/http://otot.ppt/http://otot.ppt/
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    BACK

    http://dani%20otot.ppt/http://dani%20otot.ppt/http://otot.ppt/
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    & & 9&r m&s%&" r

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    < A pair of tropomyosin molecules is associated withevery 7 pairs of G-actin residues along a thin filament each tropomyosin molecule covers the myosin bindingsites of 7 G-actin residues, preventing interactionbetween actin and myosin and thus maintaining therelaxed state.

    ! $ +9 s r, "9mm ; '+!,+s r9 s +9 ss ,! 9 T & &"9 s*s 9m 99 ! +9 ! 9r! r$ +9 m* $! 9r.

    < T & &"9 9 " r!> ! s r9 s +9 s r, " sm!, r9 !,&"&m (SR);with the effect of opening voltage-gated calcium channels in the !"membranes .

    < T+!s !s $ "" '9 * m ss!=9; r ! m =9m9 $ ,!s 9r " , ",!&m! +9 s r, " sm ," s9 9 r * m* $! r!"s.

    < T+9 9 r ,9 $ , ",!&m =9r* ," s9 +9 T - s& & ! $

    r ! r9s&" s ! +9 r &, ! $ m&" ! "9 m* s! '9r s r %9s< RELABATION --s r, " sm!, , ",!&m !s &m 9 ,% ! +9 SR,!s 9r 9 * 9? r9m9"* , !=9 AT4- r!=9 , ",!&m &m ; '+!,+, m r!s9s 9 $ +9 m ! r 9! s $ +9 SR m9m r 9.

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    OTOTJANTUN@