Muscle wani laushi ne mai laushi da ake samu a yawancin dabbobi. Kwayoyin tsoka sun ƙunshi filaments na furotin na actin da myosin waɗanda ke zamewa da juna, suna haifar da raguwa wanda ke canza duka tsayi da siffar tantanin halitta. Tsokoki suna aiki don samar da ƙarfi da motsi.
Su ne da farko ke da alhakin kiyayewa da canza matsayi, locomotion, da motsi na gabobin ciki, kamar ƙaddamar da zuciya da motsin abinci ta hanyar tsarin narkewa ta hanyar peristalsis.
Nassoshin tsoka suna samuwa ne daga mesodermal Layer na kwayoyin embryonic germ cell a cikin tsarin da aka sani da myogenesis. Akwai nau'ikan tsoka guda uku, skeletal ko striated, zuciya, da santsi. Ana iya rarraba aikin tsoka a matsayin na son rai ko na son rai.
Ƙunƙarar zuciya da santsin tsokoki suna yin kwangila ba tare da tunani mai hankali ba kuma ana kiran su da son rai, yayin da tsokoki na kwarangwal suna yin kwangila bisa umarni.
Za a iya raba tsokoki na kwarangwal zuwa filaye masu sauri da jinkiri. Ana yin amfani da tsoka da yawa ta hanyar iskar oxygenation na fats da carbohydrates, amma ana amfani da halayen sinadarai na anaerobic, musamman ta hanyar filaye masu sauri. Waɗannan halayen sinadarai suna samar da kwayoyin adenosine triphosphate (ATP) waɗanda ake amfani da su don ƙarfafa motsin kawunan myosin. Kalmar tsoka ta samo asali ne daga musculus na Latin ma'ana "karamin linzamin kwamfuta" watakila saboda siffar wasu tsokoki ko kuma saboda kwangilar tsokoki suna kama da beraye masu motsi a ƙarƙashin fata.
Ni Joost Nusselder, wanda ya kafa Likitan Kayan aiki, mai tallan abun ciki, kuma uba. Ina son gwada sabbin kayan aiki, kuma tare da ƙungiyara Na ƙirƙira zurfafan labaran yanar gizo tun daga 2016 don taimakawa masu karatu masu aminci tare da kayan aiki & dabarun ƙira.
