47 workbook 2

Question 1

high frequencey transducer that is inserted into the vaginal canal to obtain better definition of the first trimester pregnancy

Answer 1

transvaginal transducer

Question 2

uterine decidua on the surface of the implantation site

Answer 2

decidua capsularis

Question 3

surrounds the amniotic cavity and contains the yolk sac

Answer 3

chorionic cavity

Question 4

hormone secreted by the trophoblastic cells of the blastocyte; laboratory test indicates pregnancy when values are elevated

Answer 4

human chorionic gonadotropin

hCG

Question 5

time between 4 and 10 weeks gestation

Answer 5

embryonic period

Question 6

the umbilical duct connecting the yolk sac with the embryo

Answer 6

yolkl stalk

Question 7

most accurate measurement of the embryo in the first trimester

Answer 7

crown-rump length

Question 8

production and development of blood cells

Answer 8

hematopoiesis

Question 9

mean sac diameter

Answer 9

MSD

Question 10

interface between the decidua capsularis and the echogenic, highly vascular endometrium

Answer 10

double decidual sac sign

Question 11

cavity in which the fetus exists; forms early in gestation;fills with amniotic fluid to protect the fetus

Answer 11

amniotic cavity

Question 12

intrauterine pregnancy

Answer 12

IUP

Question 13

uterine decidual surface on the maternal side of the placenta

Answer 13

decidua basalis

Question 14

invasive diagnostic genetic testing that involves sampling zygotic cells from developing placental tissue

Answer 14

chorionic villi sampling