00:01
The question says which is true for the parteration.
00:03
Poderation is childbirth.
00:19
So the correct option is oxytocin promote uterine contraction, option a.
00:44
So oxytocin is a hormone released by posterior pituitary gland during labor.
01:23
So it actually stimulates the uterine muscle to contract and it actually create a positive feedback loop, eventually to play a crucial role in progressing labor.
01:33
So when i talk about the positive feedback loop basically is the fetus head pressed on the cervix, and the cervix nerve actually sends signal to the posterior gland to secrete oxytocin, which caused urine contraction.
02:06
The urine contraction will actually push the fetus head further on the cervix, which would actually induce more oxytocin secretion.
02:20
So this, actually cause stronger and stronger uterine contraction.
03:00
So the posterior artery gland received a signal from the nerve and secret oxytocin, which cause uterine contraction.
03:37
The uterine contraction actually further cause the fetus head to press on the cervix.
03:48
And then more signal will be sent to the brain, more oxytocin will be secreted.
03:53
So this is the positive feedback loop.
04:05
Eventually, the child will actually get expelled on the birth canal.
04:11
So this is the correct option...