Placenta And Membranes

Question 1

Normal placenta is first apparent on US at about ____ weeks as a focal thickenint af the periphery of the gestational sac

Answer 1

8 weeks

Question 2

Normal cervical length

Answer 2

26-50 mm throughout gestation

Question 3

Cervical length is measured in sagittal plane between

Answer 3

Internal Os marked by V-shaped notch and external Os marked by triangular echodensity

Question 4

Disc shape of the placenta becomes evident by

Answer 4

12 weeks

Question 5

Placenta is finely granular and homogeneous with smooth covering chorionic memvrane along its fetal surface at what GA

Answer 5

18 weeks