Cov myofibrils yog tsim los ntawm repeating sarcomeres, cov kab mob hauv nruab nrab ntawm cov leeg plawv muaj li ntawm interdigitating nyias (actin) thiab tuab (myosin) filaments (saib daim duab 65-1), uas muab cov leeg nws tus yam ntxwv striated tsos.
Vim li cas cov leeg mob plawv thiaj li muaj striations?
Cov leeg mob plawv, zoo li cov leeg pob txha, zoo li striated vim lub koom haum ntawm cov leeg nqaij mus rau hauv sarcomeres. … Cov cardiomyocytes yog tsim los ntawm tubular myofibrils, uas yog rov qab seem ntawm sarcomeres. Intercalated disks xa hluav taws xob muaj peev xwm ua haujlwm ntawm sarcomeres.
Vim li cas cov pob txha thiab cov hlab plawv muaj striations?
Ob lub pob txha thiab lub plawv cov leeg zoo li striated, los yog striped, vim lawv cov hlwb tau teem rau hauv pob. Cov nqaij ntshiv tsis yog striated vim lawv cov hlwb tau teem rau hauv cov nplooj ntawv es tsis txhob bundles.
Vim li cas cov nqaij striated muaj striations?
Cov tsos mob ntawm cov nqaij pob txha pob txha yog qhov tshwm sim ntawm kev rov ua dua ntawm cov proteins actin thiab myosin uas muaj nyob ntawm qhov ntev ntawm myofibrils. Tsaus A bands thiab lub teeb I bands rov ua raws li myofibrils, thiab kev sib raug zoo ntawm myofibrils hauv lub cell ua rau tag nrho cov xov tooj ntawm tes tshwm striated los yog banded.
Puas mob plawv striated?
Cov kab mob plawv nyob hauv cov phab ntsa ntawm lub plawv, tshwm striated, thiabyog nyob rau hauv involuntary tswj.
