What echogenic structure is seen in the first trimester filling most of the lateral ventricles in the fetal brain?

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

Which of the following is NOT an indication for 1st trimester ultrasound

1st triemster 2.jpg The image above represents which of the following?

After neural tube closure, which of the three primary vesicles formed by the rostral neuropore is the hindbrain?

Typically, the yolk sac resorbs and is no longer visible sonographically by __________ weeks.

1st triemster 3(2).jpg The phenomenon imaged above is a(n) normal or abnormal occurence?

The diameter of the normal yolk sac should never exceed ____________mm.

1st triemster 1.jpg The anechoic structure seen within the fundus is most likely

By __________, the midline falx has formed and echogenic choroid plexus tissue is seen in lateral ventricles of the skull.