EMBRYOLOGY
FERTILISATION EARLY DEVELOPMENT OF EMBRYO AND IMPLANTATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Cortisol
|
|
|
Oxytocin
|
|
|
Prostaglandin
|
|
|
Progesterone
|
Detailed explanation-1: -Progesterone has been used to inhibit uterine contraction and prevent abortion and preterm labor.
Detailed explanation-2: -Oxytocin stimulates the uterine muscles to contract and also increases production of prostaglandins, which increase the contractions further. Manufactured oxytocin is sometimes given to induce labour if it has not started naturally or it can be used to strengthen contractions to aid childbirth.
Detailed explanation-3: -In the female ovary, this release of FSH and LH on the gonads causes the release of progesterone. Excess amounts of progesterone will cause negative feedback inhibition on each prior organ, resulting in the cessation of the release of hormones.
Detailed explanation-4: -Progesterone (P) powerfully inhibits gonadotropin-releasing hormone (GnRH) secretion in ewes, as in other species, but the neural mechanisms underlying this effect remain poorly understood.