Munguva iyo nguva yose yekuzvitakura, iyo fetus iri mumamiriro emvura - inenge yakasviba yakazara amniotic fluid, inonziwo amniotic fluid . Kusvikira nguva yekuberekwa, bubhu iyi inobata mabasa akawanda - inoderedza kudengenyeka, inobatanidzwa mumakumbo ekugadzirisa muviri, inopa kugadzirira kwekushanda kwechimiro chezvikamu zvitsva. Apo nguva yekuberekwa ichiuya, chirwere chinoputika-uye yose amniotic fluid inobuda - iyi nzira inonzi "kuyerera kwemvura".
Panenge nhamba ye amniotic fluid uye inowanzo
Nechirongwa che ultrasound, chiremba anofanira kuongorora huwandu hweamniotic fluid, achifananidza nechiyero chekuzvitora kwakapiwa uye vataridzi vanogona kuchinja maitiro avo. Chimiro uye chiyero cheAmniotic fluid chinoverengerwa pane imwe nguva yekubata uye inowanikwa mu tafura iri pasi apa:
Nhoroondo iri mutafura inofananidzwa, sezvo chiremba achienzanisa zvakananga ichi chiratidzo panguva ye ultrasound, achifunga mamiriro ezvinhu akadai emukadzi ane pamuviri uye zviratidzo zvose zvehutano hwake uye mwana ari mudumbu. Nhamba yemamniotic fluid inowanzosiyana uye inowanzo munyaya iyi inoreva nguva. Tafura inopa pfungwa imwe chete yemiganhu yemagariro eamniotic fluid, saka kuguma kurapwa kunoitwa chete nechiremba anobva kune ultrasound.
Chimiro che amniotic fluid ndechimwe chezvinonyanya kukosha mukudzivirira, sezvo ichi chiratidzo chiri chechokwadi chechirwere chepamuviri. Apo kushanda kwezvikamu zvenguva pfupi zve fetus zvinokanganiswa, polyhydramnios inowanzoonekwa, nehutachiona pane chikamu chemuviri waamai - kazhinji kune kushaya zvokudya zvinovaka muviri. Mnogovody mumadzimai ane pamuviri anofunga nezvenyoyo yeamniotic fluid, iyo inodarika chimiro (munyaya iyi - kumucheto wepamusoro wezera racho) ne 1.3-1.5 nguva. Kusagadzikana kwezvakakwana (aine chikamu chiduku kupfuura chikamu chepamusoro chechimiro) chakakonzerwa nekubereka kwakakomba uye kushungurudzika kwekuberekwa kwomwana. Polyhydramnios inotyisa sekutyisidzika kwekubuda kwechibereko uye nekusununguka kwekutaura kwe fetus.