Isihlunu sisihlunu esithambileyo esifumaneka kwizilwanyana ezininzi. Iiseli zezihlunu zineprotein filaments ye-actin kunye ne-myosin etyibilika idlula enye kwenye, ivelisa ukufinyela okutshintsha zombini ubude kunye nokumila kweseli. Izihlunu zisebenza ukuvelisa amandla kunye nokunyakaza.
Ngokuyintloko banoxanduva lokugcina kunye nokutshintsha i-posture, i-locomotion, kunye nokuhamba kwamalungu angaphakathi, njengokuxinana kwentliziyo kunye nokuhamba kokutya ngokusebenzisa inkqubo yokugaya nge-peristalsis.
Izihlunu ze-muscle zithathwe kwi-mesodermal layer ye-embryonic germ cells kwinkqubo eyaziwa ngokuba yi-myogenesis. Kukho iintlobo ezintathu zezihlunu, i-skeletal okanye i-striated, intliziyo, kunye ne-smooth. Isenzo sezihlunu singahlelwa njengento yokuzithandela okanye yokuzithandela.
Intliziyo kunye nezihlunu ezigudileyo ziyafinyela ngaphandle kokucinga kwaye zibizwa ngokuba azithandeki, ngelixa izihlunu zamathambo zifinyela ngokomyalelo.
Izihlunu zamathambo zinokwahlulwa zibe yimicu ekhawulezayo necothayo. Izihlunu zinikwa amandla ngamandla yi-oxidation yamafutha kunye neecarbohydrates, kodwa ukuphendula kweekhemikhali ze-anaerobic zikwasetyenziswa, ngakumbi yimicu ekhawulezayo. Ezi mpendulo zemichiza zivelisa i-adenosine triphosphate (ATP) iimolekyuli ezisetyenziselwa ukunika amandla ukuhamba kweentloko ze-myosin. Igama elithi isihlunu lithatyathwe kwigama lesiLatini elithi musculus elithetha “impuku encinane” mhlawumbi ngenxa yokumila kwezihlunu ezithile okanye ngenxa yokuba izihlunu ezivumelanayo zikhangeleka njengeempuku ezihamba phantsi kwesikhumba.
NdinguJoost Nusselder, umseki weZixhobo zeGqirha, umthengisi womxholo, kunye notata. Ndiyathanda ukuzama izixhobo ezitsha, kwaye kunye neqela lam ndiye ndenza amanqaku ebhlog anzulu ukusukela ngo-2016 ukunceda abafundi abathembekileyo ngezixhobo kunye neengcebiso zokwenza.
