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When the mean gestational sac diameter exceeds ____mm, an embryo with definite cardiac activity should be well seen with endovaginal scanning.

Which measurement is devised to determine the normality of the fetal head shape?

The maximum measurement the yolk sac should be to be considered normal is

The fetal heart lies

A condition in which the fetus is not growing as fast as normal is termed

With normal growth during the first trimester, the size of the gestational sac should increase daily by

Which of the following is the first sonographic sign of pregnancy typically seen on weeks 3 to 4?

At _____________ menstrual age, the primary yolk sac is pinched off and forms the secondary yolk sac.

The _________ is the initial dumping ground for embryonic waste and later the placenta takes over the process.

1st triemster 3(1).jpg This phenomenon imaged above occurs at approximately gestational week __________.