All of the following statements concerning pregnancy are accurate $EXCEPT$
the detection of human chorionic gonadotropin in the urine forms the basis for pregnancy tests.
the cyclic release of pituitary gonadotropins and ovarian steroids is continued.
the mammary gland tissue of the pregnant woman is stimulated to develop by placental hormones.
the corpus luteum of pregnancy maintains the uterus until the placenta is well established.
Delete odd one (Only during pregnancy).
In which of the following the placenta forms an important structure in development
The role of placenta is
Match the columns
Column $I$ | Column $II$ |
$(a)$ Third week | $(1)$ Development of pre umbilical code |
$(b)$ Third month | $(2)$ Body develops but head remains big |
$(c)$ Fourth week | $(3)$ Embryonic slit widens |
$(d)$ Fourth month | $(4)$ Muscles activate |
In Human beings, at the end of $12$ weeks (first trimester) of pregnancy, the following is observed