Imisipha yamathambo yi-"action" muscle back. Xa basebenza, umphumo luhamba ngokubonakalayo komgudu wakho. Eli nqaku lichaza apho ezi zihlunu zihambelana nolunye uhlobo lwesipelini (ngasemva) kunye nento abayenzayo.
Okokuqala, ke, makhe sifumane imigaqo yethu ngqo. Igama lobugcisa be-paraspinals yi-spinae ye-erector; abangenanto yokuthetha, abantu abaninzi banenkinga yokubiza.
Le nto ingaba igama elithi "paraspinals" kunye negama elithi "imisipha yamathambo" ziindlela eziqhelekileyo zokubhekisela kweli qela elibalulekileyo lemisipha yangemva.
Imisipha yePasaspinal ichazwe
Iipasaspinals ziisetyenzana sezihlunu ezintathu ezithatha into eyaziwa njengoluhlu oluphakathi lwentsimbi yangasemva yangaphakathi. Njengoko igama lisikisela, uluhlu oluphakathi lubekwe ngaphaya kobunzulu obunzulu, kwaye ngaphantsi komgca ongaphezulu. Zonke iziqendu ezintathu zeengcambu zangasemva zangaphantsi ziphantsi kwama-2 ngaphezulu amaqela angama-back muscle ahlangeneyo awenza ndawonye imisipha ye-back back.
Umsebenzi wemisipha yomzimba iwukuba ukwandisa umlenze wakho kwaye uwuguqe kwicala elifanayo apho u-muscular muscular contract is located.
Abantu abaninzi banokulinganisa ukunyuswa kwesipelingi ngokuphindaphindiweyo, okungathi yindlela efanelekileyo yokucinga ngayo xa uchaza okanye uzama lolu hlobo lokuhamba.
Ukuqhekeka kwezihlunu ze-parasipinal kusebenza "ukujonga" isenzo seesisu zomzimba.
Ngamanye amagama, izihlunu zesisu, ngokukodwa i-rectus abdominus , ukugoba i-trunk phambili. Njengoko le ntshukumo iyabonakala, ukuqhekeka kwe-eccentric (apho i-muscle ixhomekeka njengezivumelwano) ze-paraspinals igcina i-trunk ukuguqa ngokukhawuleza, kunye nokuhamba phambili kakhulu. Izibilini kunye nezidumbu ze-paraspinals zisebenza kunye ukunceda ukugcina isigxina somzimba ngokuthe tye.
Indawo yeMisipha yamaPasaspinal
Iimfudu zezilwanyana zihamba ngendlela ephakamileyo kwikholam yomgca, ukusuka kwi-gace ukuya kwi-pelvis. Nangona zonke i-3 ziqala kwindawo enye-indawo ethile kwindawo ephantsi kakhulu yomgudu - kwaye zonke zinomyinge we-lumbar, thoracic kunye nentsholongwane, iintambo zabo ze-muscle zifake kwiimeko ezihlukeneyo ze-vertebrae yomlenze kunye nezimbambo.
Iimisipha ezi-3 ezibandakanya umgca ophakathi kwezihlunu zangemva zangaphakathi zi-i-iocostalis, i-longissimus, kunye ne-spinalis.
Iliocostalis
Umsila we-iliocostalis ngowona mnye (ngaphandle) we-3 imisipha yomzimba. Ivela kwi-tendon ebanzi ngasemva kwethambo le-hip, ngasemva kwe-sacrum bone, i-ligaments ye-sacroiliac joints, kunye neenkqubo ze-spinous ze-vertebra esezantsi (kuquka iigaments ezidibanisa le nkqubo kunye nomnye.)
Ingxenye yesalathisi ye-iliocostalis muscle ihamba phezulu ukusuka kwindawo engezantsi yeplanga kunye ne-sacrum ukuba ifakwe kumda ongaphantsi wee-6 okanye ezisi-7 izimbambo, ngeendlela zokuthambisa ezisuka kumgca ophezulu. Isahluko se-thoracic sinamathele kwiimbambo, kodwa ezi ziyingxenye ephezulu yeembambo eziphezulu ezi-6. Esi sabelo sinamathele kwingxenyana yangaphambili yeenkqubo ezijikelezayo ze-7 ye-colervical (intamo) vertebra.
Ingxenye yomlomo wesibeleko se-iliocostalis ifakwe emva kweenkqubo ezijikelezayo ze-4 ukuya kwi-vertebrae yesi-7 yesibeletho.
Longissimus
Njengemisipha ye-iliocostalis, i-longissimus ivela kwi-tendon ebanzi ngasemva kwamathambo ase-hip, ngasemva kwe-sacrum bone, i-ligaments ye- sacroiliac joints , kunye neenkqubo ze-spinous ze-vertebra esezantsi (kuquka iigaments ezidibanisa ezi iinkqubo komnye nomnye.) Kuphakathi kwe-iliocostalis kunye ne-spinalis (jonga ngezantsi ingxoxo malunga ne-spinalis).
Kwaye njenge-iliocostalis, i-longissimus inamalungu amathathu kuwo.
Kodwa endaweni ye-lumbar, i-thoracic kunye nentsholongwane yomzimba, le misipha ine-thoracic, intsholongwane kunye ne-cranial (intloko okanye i-kkull). Iitendoni zengxenyana ye-thoracic zixhomekeke kwiingcebiso zeenkqubo ezitshintshileyo zonke i-vertebrae ye-thoracic kunye namagatsha omsila ukuya kwiincundu eziyi-9 okanye ezili-10.
Ingxenye yomlomo wesibeleko ixhomekeke kwiinkqubo ezithintekayo ze-2 ukuya kwe-6 ye-vertebrae yomlomo wesibeleko.
Inxalenye yesikhokelo idibanisa kwisithambo esaziwa njengeprotti ye-mastoid, efumaneka emva kwekhayi, ngqo emva kweendlebe.
Spinalis
Njenge-iliocostalis kunye nezidumbu ze-longissimus, i-spinalis ivela kwi-tendon ebanzi ngasemva kwamathambo ase-hip, ngasemva kwe-sacrum bone, i-ligaments ye-sacroiliac joints, kunye neenkqubo ze-spinous ze-vertebra esezantsi (kuquka iigaments ukudibanisa le nkqubo kumnye.)
Kwimisipha ye-3 ye-paraspinal, i-spinalis iyona efuphi kwikholam ye-vertebral. Kananjalo, ineziqephu ezi-3: I-thoracic, i-colervic ne-capitis.
Isahluko se-thoracic sifaka kwiinkqubo ezinobuncinane be-4 ukuya kwe-8 (ingahluka) i- vertibrae ye-thoracic . Inxalenye yomlomo wesibeleko ifakwe kwinkqubo ye-spinous ye-vertebra yesibili yomlomo (ebizwa ngokuba yi-axis) kunye ngamanye amaxesha kwiinkqubo ezinobumba be-1 okanye-2 vertebra ngaphantsi koko. Inxalenye yesibeleko ifakwe kwinkqubo ye-mastoid, leyo yindawo efanayo kwinqanaba le-longissimus muscle.
> Umthombo :
Kendall, F., McCreary, E. Izibonelelo, P. Imisipha: Uvavanyo kunye neMisebenzi. 4 edition. Williams & Wilkins. Baltimore, MD. 1993
UMorey, uK., uDalley, A. I-Anatomy ye-Clinically Oriented. Isihlanu. Uhlobo. Lippincott, Williams & Wilkins. 2006. Baltimore. Philadelphia, PA