Matsayi na waje na tsohuwar ƙwayar maɗaukaki yana dauke da tsokoki mai zurfi.
Ya bambanta da tsokoki mai tsaka-tsalle, ƙwayoyin tsohuwar ƙwayar suna da kyau sosai; a wasu kalmomi, suna kusa da kasusuwa fiye da fata. An sanya raƙuman tsohuwar ƙwayoyi zuwa kashi 3: Layer na sarari, matsakaicin matsakaici, da zurfi mai zurfi.
Wannan labarin yayi magana akan ƙananan layi na tsokoki na baya.
Layer Layer
Kamar yadda sunan ya nuna, ƙananan tsohuwar ƙwayar tsohuwar ƙwayar maɗaukaki tana zaune a saman wasu 2 layers a cikin wannan rukuni. Ƙunƙasa na kasa ba ya kunshe da ƙwayoyin ƙwayar halitta - splenius cervicis da splenius capitis. Tare da tsokoki na splenius suna rufe siffofin furotin da ke tsaye a tsaye (wanda ya fi zurfin ciki kuma yana dauke da matsakaicin matsakaici na tsokoki na baya.)
Kalmar splenius tana nufin bandeji. (An cire shi daga kalmar Latin don bandage, wanda shine "splenion") Kuma a wani ma'ana, bandaging shine abin da tsokoki na jiki ya yi wa furotin (matsakaitan tsaka-tsaki) - kazalika da waɗannan tsokoki masu tsaka-tsakin tsaye Layer mai zurfi mafi zurfi. Ƙunƙarar ƙwayar ƙanƙara (sabili da haka maɗaukaki na tsohuwar ƙwayar tsohuwar ƙwayar tsohuwar jiki) yayi amfani da su don ɗaukar wadannan layuka zurfi a matsayi.
Harshen sutura da ƙwayar jiki suna rufe yankin daga kasa na wuyansa (C-7) har zuwa ɓangaren sama na spine thoracic (T-3 ko T-4). Sun fara a tsakiyar tsakiyar kashin a waɗannan matakan. tare suna yin siffar "V" - tare da ɓangarorin "V" sosai lokacin farin ciki da kuma tsakiya na ainihi sosai.
An samu matsayi a cikin splenius cervicalis, amma kuma, nau'i biyu sun zama nau'i kuma suna aiki tare.
Kowane mutum ƙwayoyin tsohuwar ƙwayoyin cuta da kuma cervicalis sune kan layi. Da farko a tsakiyar tsakiyar spine, firaran suna kusantar kwanyar da kuma ƙwayar magunguna (C1-C3 ko C4).
Bari muyi koyi game da ƙwaƙwalwar mutum guda ɗaya daga cikin ƙananan ƙananan tsohuwar ƙwayar baya.
Splenius Capitis
Kamar yadda aka ambata a sama, tsofaffin tsofaffin kwayoyin launuka suna farawa a tsakiyar tsakiyar spine, suna nuna matakan tsakanin sakonnin ka na 7 zuwa 3rd ko 4th (ya bambanta) thoracic vertebrae. Mafi mahimmanci, ƙwayar splenius ta fito ne daga haɗin gwal na naman, wanda shine babbar haɗin gwiwar wuyansa, da kanta ya taso daga ligament wanda ya haɗa magungunan matakan da kake da shi a hankali har zuwa saukar da kashin baya. (Ana kiransa wannan liyafa mai cikewa). Sakamakon spelnius yakan fito ne daga matakai na C7-T3 ko T4.
Tashi mai laushi ta hanyar ƙuƙwalwa sa'an nan kuma kusoshi sama da waje don haɗawa da kwanyarka a wurare biyu: Tsarin mastoid, wanda yake a baya da zuwa kasa sosai na kunnen, da kuma a saman kwanyar kwanyar, wanda yake a baya kullunka amma a matakin da ya fi tsarin mastoid.
Splenius Cervicalis
Kamar splenius capitis, cervicalis splenius yana farawa a tsakiyar tsakiyar spine, yana nuna matakan da ke tsakanin sakonnin ku na 7 zuwa 3rd ko 4th (ya bambanta) thoracic vertebrae. Mafi mahimmanci, cervicalis na splenius ya fito ne daga haɗin gwanin nama, wanda yake da karfi mai haɗin gwiwar wuyansa, da kanta ya taso daga ligament wanda ya haɗa kwakwalwan matakan da kake da shi a cikin hanzari. (Ana kiransa wannan liyafa mai daraja.) Cervicalis na spelnius yana fitowa ne daga matakai na C7-T3 ko T4.
Sabanin splenius capitis, cervicalis na splenius ya rataye a kan hanyoyin tafiyar da kashi 3 ko 4 na ƙananan ƙuƙwalwa (wuyansa), a wasu kalmomi a C1-C3 ko C4.
Lokacin da ɓangarorin biyu na na'ura ta splenius suka yi aiki tare, sakamakon shine ƙarar wuyansa, wanda yayi daidai da mayar da kansa zuwa baya na wuyansa. Lokacin da ɗaya gefen ke yin kwangila, ƙwayoyin splenius suna taimakawa wajen karkatar da / ko juya wuyansa a gefen haɗin.
Sources
Moore, K., Dalley, A. Clinically Oriented Anatomy. Cin biyar. Edition. Lippincott, Williams & Wilkins. 2006. Baltimore. Philadelphia, PA