The First Trimester

Question 1

Longest and most tortuous portion of the fallopian tube?

Answer 1

Ampulla – almost most common location for an ectopic

Question 2

What implants itself into the decidualized endometrium?

Answer 2

Blastocyst

Question 3

Choriocarcinoma:

Answer 3

Most malignant form of gestational trophoblastic disease

Can metastasize to the lungs, liver and vagina

Question 4

Chorionic cavity:

Answer 4

space between the chorionic sac and amniotic sac that contains the secondary yolk sac
aka extra-embryonic coelom

Question 5

Gestational sac aka

Answer 5

chorionic sac

Question 6

What part of the placental is maternal?

Answer 6

Villi

Question 7

The endometrial tissue at the implantation site, and the maternal contribution of the placenta?

Answer 7

Decidua basalis

Question 8

What makes up the double decidual sign?

Answer 8

Decidua parietalis and capsularis

Question 9

Embryo

Answer 9

Term given to developing fetus before 10wks

Question 10

Double fold of dura mater:

Answer 10

falx cerebri

Question 11

Gestational age aka

Answer 11

Menstrual age

Question 12

Most common form of gestational trophoblastic disease?

Answer 12

Hydatidform mole

Question 13

Pseudogestational sacs are often seen with:

Answer 13

Ectopic pregnancies – corresponds to an accumulation of blood and secretions within the uterine cavity

Question 14

What does the rhombencephalon develop into?

Answer 14

Cerebellum, pons, medulla oblongata, and fourth ventricle–hindbrain

Question 15

What structure is responsible for early nutrient transfer to the embryo?

Answer 15

Secondary yolk sac

This is what’s seen on early pregnancy

Question 16

Vitelline duct-

Answer 16

Structure that connects the developing embryo to the secondary yolk sac

Question 17

The outer portion of the blastocyst is the? What does it develop into?

Answer 17

Syncytiotrophoblastic cells

Placenta and chorion

Question 18

What does the inner portion of the blastocyst develop into?

Answer 18

Amnion, umbilical cord, embryo, and yolk sacs

Question 19

What is the alimentary canal?

Answer 19

The foregut, mid gut and hindgut

Question 20

Foregut:

Answer 20

Esophagus, stomahc, liver, GB, panc and prox duodenum

Question 21

Midgut:

Answer 21

Dst duodenum, jejunum, ilieum, cecum, asc colon, prox half of transverse colon

Question 22

Hindgut:

Answer 22

Dst half of transverse colon, desc colon, sigmoid colon, rectum and anus

Question 23

What’s the earliest sign of a pregnancy? First definitive sign?

Answer 23

Double decidual sac sign

Decidual sac

Question 24

What hCG levels should we see a pregnancy at?

Answer 24

1000-2000 (TV)

Question 25

GS will grow at a rate of ____ per day

Answer 25

1mm

Question 26

Where is the secondary yolk sac located?

Answer 26

Chorionic cavity

Question 27

What produces AFP in early gestation?

Answer 27

Yolk sac

Question 28

What’s the function of the secondary yolk sac?

Answer 28

Hematopoesis and angiogenesis