The villi which are formed by the allantochorion to form the intimate connection with uterine endometrium functions as
Gaseous exchange organ only
Attachment arrangement only
Placental structure
None of the above
The extra-embryonic membranes of the mammalian embryo are derived from
$A$ : Oxytocin acts on the uterine muscles and cause stronger uterine contractions, which in turn stimulates further secretion of oxytocin.
$R$ : Oxytocin is released from maternal pituitary
Choose the correct combination of labelling the hormonal control of female reprodcutive system
Placenta has an outer layer which is selectively permeable and hormone secreting which is known as
The hormones of the sperm are called