Muchibereko chechivharo inhengo iyo inobatanidza chibereko chechibereko nemukadzi uye inoita mamwe mabasa. Basa rayo guru nderokuchengetedza, saka nekuda kwekuvharwa mukati-kati kweyewn iyo inodzivirira kupindira kwemaruva kubva mumuviri kusvika muchibereko. Muchizivo chinowanikwa nechokunze uye chepakati chepine, uyewo kuzarura kunobatanidza chibereko nemukadzi - chirwere chechibereki. Iyo yakareba urefu hwechirwere panguva yekuzvitakura inofanira kunge inenge 3 cm, pamwe nekuderera kwehurefu, kutaura pamusoro pengozi yekubvisa pamuviri uye kusarudza kana uchienda kunze kwekurapa kana kurapwa.
Cervical Length muKuberekwa
Sezvatotaurwa, chirwere chechivharo chinoshanda chidziviriro, kunyanya munguva yekudzivirira. Muchikamu chekutanga, chinova chakaoma kwazvo, inoumba ipurasitiki, iyo inowedzera kudzivirira kupindira kwehutachiwana muuterine cavity. Kureba kwechivharo chakavharwa chechivix musati mavhiki makumi matatu nematatu ekuberekwa kunofanira kuva masendimita matatu (3 cm).
Cervical urefu nevhiki
Kunyanya kuongororwa kwakaitwa kwakaratidza kuvimba kwehurefu hwechibereko chechibereko pamakore ekutenda. Saka, urefu hwechirwere mumakore masere kusvika gumi nemasere muchimiro chinowanzosiyana pakati pe 35-36 mm. Pamasvondo 15-19 urefu hwechirwere che 38-39 mm, pamasvondo 20-24 - 40 mm, uye pamasvondo 25-29 - 41 mm. Mushure memasvondo makumi maviri nemashanu, urefu hwechirwere hunoderera uye pamasvondo makumi matatu nemaawa matatu kusvika makumi mana kusvika makumi matatu nemakumi matatu, uye pamasvondo makumi matatu nemaviri kusvika makumi matatu nemakumi matatu nemakumi matatu nemakumi matatu nemakumi matatu nemakumi matatu nemakumi matatu nemakumi matatu nemakumi maviri nemashanu Sezvaunogona kuona, mushure memasvondo makumi maviri nemashanu chibereko chechivharo chinotangira kugadzirira kuberekwa kuchauya. Pashure pemavhiki makumi matatu nemaviri ekuberekwa, chirwere chechivharo chinotanga kunonoka asati aberekwa , chinopera, chikamu chayo chinotanga kumira uye chinopfuura chikamu chemunwe. Kureba kwechibereko chemuviri muchizvarwa chakazvarwa pamasvondo 13-14 kunofanira kuva 36-37 mm.
Cervical urefu asati aberekwa
Pakarepo asati aberekwa, chirwere chechivharo chinobereka, chinonzi "kuibva." Mutsipa unonyoreswa, unowanikwa (uri pakati pebato duku), urefu hwahwo hunoderera kusvika 10-15 mm, uye mukati mukati pharynx rinotaputika ne 5-10 mm (inopera chikamu chemunwe kana mumwe munwe). Pane kunongedza kwemukati memutsipa, zvinova, sezvakange zvakaita, kuwedzera kwechikamu chezasi chechibereko. Kureba kwechirwere panguva yekuberekwa kunoderera nokukurumidza - kunotanga, kuitira kuti fetus inogona kupfuura nepamuviri wekubereka. Pakuvamba kwebasa ndiko kurwadziwa kwepamuviri mumimba, iyo inonzi maitiro. Munguva yekudzivirira, chibereko chemuviri chemucheche uye panguva imwechete chibereko chechivharo chinotanga. Apo kuzarura kwechirwere kunosvika 4 cm, basa rebasa rinosimbiswa uye kuvhurwa kwayo kunotevera kunosvika 1 cm paawa.
Utachivi hwechivivhesi kana kune ngozi yekubvisa pamuviri
Kuderedza murefu wemukirini pasi pe30 mm pamasvondo 17-20 ekudzivirira kunoonekwa seastmiko-cervical insufficiency . Nehutachiona ichi, urefu hwechirwere hunogona kupfupiswa zvishoma nezvishoma, uye fetus inodzika kusvika kubuda, iyo
Takaongorora kuti chii chinofanira kuva urefu hwechirwere panguva yekudzivirira uye asati aberekwa. Uyewo akaziva nezvehutachiona hwakadai seytiskoko-cervical insufficiency, iyo inogona kutaurwa kuderedza urefu hwechirwere chechibereki pasi pe 29 mm.