Study the flow chart given below Name the hormones involved at each stage and explain their role ovulation - Biology - Human Reproduction

Question

Study the flow chart given below Name the hormones involved at
each stage and explain their role
ovulation
to
Pregnancy
to
Placenta
to
foetal growth
to
parturition

Shivali · Accepted Answer

(i) Ovulation:-The process of release of mature egg from the
ovary is known as ovulation It is controlled by Leuteinizing
Hormone, secreted from anterior pituitary gland
(ii)Pregnancy itself is a long duration period of 9 months which
involves the formation of placenta and foetal growth Pregnancy
takes place when egg is fertilized by sperm and this fertilized egg
gets implanted in wall of uterus During pregnancy,placenta acts as
an endocrine gland, and produces the human chorionic gonadotropins,
human placental lactogen, oestrogen, progesterone and relaxin
(later stages of pregnancy) These hormones support foetal growth
and help in the maintenance of pregnancy Hormones like estrogen,
progesterone, cortisol, prolactin, etc are increased several folds
in the maternal blood
(iii)Parturition:-The delivery of the foetus through vigorous
uterine contractions at the end of pregnancy is known as
Parturition It is regulated by hormone known as Oxytocin, secreted
from pituitary,which causes stronger uterine contractions

Study the flow chart given below.Name the hormones involved at each stage and explain their role.. ovulation to Pregnancy to Placenta to foetal growth to parturition

Study the flow chart given below.Name the hormones involved at each stage and explain their role..

ovulation

to

Pregnancy

to

Placenta

to

foetal growth

to

parturition