(hauv obstetrics) lub xeev ntawm uterine nqaij fibers tshuav luv luv tom qab cog lus thaum lub sij hawm ua hauj lwm. Qhov no ua rau muaj kev loj hlob zuj zus ntawm fetus downwards los ntawm lub plab mog. Qhov basal feem ntawm lub tsev menyuam ua tuab thiab rub lub ncauj tsev menyuam dilating tshaj qhov nthuav qhia.
Cov leeg nqaij hauv tsev menyuam ua li cas thaum lub sijhawm ua haujlwm?
Koj lub tsev menyuam yog ua los ntawm cov leeg nqaij-qee uas mus ncig ntawm lub tsev menyuam thiab qee qhov nce thiab nqis. Cov leeg mob no rub ntawm lub ncauj tsev menyuam thiab pab qhib nws thiab tso siab rau tus menyuam, pab tus menyuam txav mus.
uterine contraction thiab retraction yog dab tsi?
Contractions (tightening) thiab retraction (shortening) ntawm myometrial nqaij fibers nce qhov ntev, lub zog thiab zaus raws li kev ua haujlwm nce. Lub ntsaws ntsaws (show) raug tshem tawm thaum lub tsev menyuam qhib thiab lub hnab ntim khoom (amnion thiab chorion) feem ntau tshwm sim tsis tu ncua, cia cov kua amniotic ntws tawm.
Yuav ua li cas tswj cov leeg nqaij hauv plab thaum yug menyuam?
Posterior Pituitary thiab nws cov tshuaj Hormones
Oxytocin nkoos uterine contractions ntawm parturition, du nqaij contraction nyob rau hauv cov qog mammary thaum lub sij hawm suckling, leej niam tus cwj pwm, thiab cuam tshuam cov dej homeostasis..
Yuav ua li cas thaum lub sij hawm uterine contraction?
Uterine contraction: Tustightening thiab shortening ntawm uterine nqaij. Thaum lub sijhawm ua haujlwm, kev cog lus ua tiav ob yam: (1) lawv ua rau lub ncauj tsev menyuam nyias thiab nthuav dav (qhib); thiab (2) lawv pab tus menyuam nqis los rau hauv qhov yug me nyuam.
