Hey, that link says that HCG is secreted by the fertilised egg and not the placenta! Huh?jedishrfu said:I found this website:
http://study.com/academy/lesson/hormones-of-the-placenta-estrogen-progesterone-hcg.html
If I were you I'd have to go with what my teacher and course book say over anything found on the internet unless its from a very reliable source. There shouldn't be any contradictory facts here.
Also including progestins and estrogen as sex steroidsSuraj M said:Which are the hormones that the placenta secretes?
I have contradicting facts from the web, from my books and from my teachers
I know for certain HCG, HPL and relaxin are secreted, other than that?
That wasn't my questionjedishrfu said:Pregnancies last 9 months and are divided into three trimesters each of varying time periods (see the timeline in the wikipedia article):
https://en.wikipedia.org/wiki/Pregnancy#Physiology
Human Chorionic Gonadotropin (HCG) is a hormone produced by the placenta during pregnancy. Its main function is to support the development of the fetus by stimulating the production of progesterone, a hormone necessary for maintaining the pregnancy. HCG also plays a role in preventing the breakdown of the corpus luteum, a temporary endocrine gland that helps produce progesterone.
Human Placental Lactogen (HPL), also known as Human Chorionic Somatomammotropin, is a hormone produced by the placenta during pregnancy. Its main function is to regulate the mother's metabolism to ensure a steady supply of nutrients for the growing fetus. HPL also promotes breast development and prepares the mother's body for lactation.
Relaxin is a hormone produced by the placenta and the ovaries during pregnancy. Its main role is to help relax the ligaments and joints in the pelvis, allowing for easier delivery during childbirth. Relaxin also helps soften and widen the cervix, preparing it for labor and delivery.
Yes, abnormal levels of placental hormones can have negative effects on pregnancy. For example, low levels of HCG can indicate an ectopic pregnancy or a miscarriage, while high levels may indicate a molar pregnancy. Abnormal levels of HPL have been associated with gestational diabetes and preeclampsia. Additionally, abnormal levels of Relaxin can lead to preterm labor and delivery.
No, placental hormones also play a role in fertility and menstrual cycles. HCG is used as a marker for pregnancy in home pregnancy tests, and its levels can also indicate certain fertility issues. HPL has been found to have effects on the menstrual cycle, and Relaxin levels can indicate ovulation and may play a role in fertility treatments.