Embryology

Question 1

Examples of the Female Internal Reproductive anatomy

Answer 1

Ovaries
Fallopian tubes
Uterus
Cervix
Vagina

Question 2

Examples of Female External Reproductive anatomy

Answer 2

Glans Clitoris
Labia Majora
Labia Minora

Question 3

Female equivalent of the Penis

Answer 3

Glans Clitoris

Question 4

External Genitalia are the same through Week ______

Answer 4

Labia Majora

Question 5

External Female Reproductive structures are fully differentiated by week _____ of gestation

Answer 5

12

Question 6

The (Mesonephric/Paramesonephric) duct will form the Male tubes

Answer 6

Mesonephric (Wolffian duct)

Question 7

The (Mesonephric/Paramesonephric) duct will form the Female tubes

Answer 7

Paramesonephric (Mullerian duct)

Question 8

Fancy name for the Mesonephric duct

Answer 8

Wolffian duct

Question 9

Fancy name for the Paramesonephric duct

Answer 9

Mullerian duct

Question 10

(Female/Male) is the default sex

Answer 10

Female

Question 11

When does the Y chromosome begin to differentiate male organs and cause regression of Mullerian ducts

Answer 11

Week 8

Question 12

2 Oviducts, a fused Uterus, Vagina and a Cloaca are formed by Week _____

Answer 12

10

Question 13

What are the structures present in Week 10 of Female gestation

Answer 13

Oviducts
Uterus
Vagina
Cloaca

Question 14

Failure of the fusion of the Mullerian ducts, leaving 2 completely separate Uteri with a common Vagina

Answer 14

Uterus Didelphys

Question 15

Failure of the dissolution of the Septum separating the Mullerian Ducts; leaves a single Uterus, but with a thick septum dividing in half

Answer 15

Bicornuate Uterus

Question 16

The agenesis of one Mullerian duct, leaving one misaligned Uterus

Answer 16

Unicornuate Uterus

Question 17

Failure of BOTH Mullerian ducts to form; no uterus

Answer 17

Uterine Agenesis

Question 18

The germ cells of the Ovaries migrate from the ___________ _______ to the ______________ ___________

Answer 18

Yolk Sac; Urogenital Ridge

Question 19

The oocytes enter the (1st/2nd) meiotic division and STOP until ovulation

Answer 19

1st

Question 20

The Ovaries are pulled into the Pelvis via the __________________________, which will become the Ovarian and Round Ligament

Answer 20

Gubernaculum

Question 21

Ovarian arteries arise from the…

Answer 21

Aorta

Question 22

Ovarian veins drain into what? (Left vs. Right)

Answer 22

Left: Left Renal Vein
Right: IVC

*same for Testes

Question 23

Connects the Fetus to the Placenta; contains 1 vein and 2 arteries

Answer 23

Umbilical cord

Question 24

The Umbilical cord has (1/2) veins and (1/2) arteries

Answer 24

1 vein; 2 arteries

Question 25

Umbilical veins contain (oxygenated/deoxygenated) blood

Answer 25

Oxygenated

Question 26

Umbilical arteries contain (oxygenated/deoxygenated) blood

Answer 26

Deoxygenated

Question 27

Vascular bed formed by fetus that allows for the exchange of nutrients, gases and wastes between mom and fetus

Answer 27

Placenta

Question 28

Fetal and Maternal blood do NOT mix (True or False)

Answer 28

True (kept separate)

Question 29

What two membranes surround the fetus and the amniotic fluid within the Uterus

Answer 29

Amnion | Chorion

Question 30

The Amnion is (inside/outside) and the Chorion is (inside/outside)

Answer 30

Amnion--> inside | Chorion--> outside

Question 31

At Day _____ of gestation, we exist as a Blastocyst

Answer 31

4

Question 32

The outer ring of the Blastocyst that binds to the Uterus and forms the Placenta and Chorion is called the...

Answer 32

Trophoblast

Question 33

The inner swelling of the Blastocyst that eventually forms us is called the...

Answer 33

Inner Cell Mass

Question 34

Inner layer of the Uterus that the Blastocyst implants into

Answer 34

Endometrium

Question 35

What part of the Blastocyst forms the Placenta and Chorion

Answer 35

Trophoblast

Question 36

The Amnion forms from the Trophoblast (True or False)

Answer 36

False (forms around fetus/Inner Cell Mass)

Question 37

The (fetal/maternal) side of the Placenta is smooth, covered by Amnion and has the Umbilical cord

Answer 37

Fetal

Question 38

The (fetal/maternal) side of the Placenta is irregular and is composed of Cotyledons (vascular segments)

Answer 38

Maternal

Question 39

The Umbilical arteries and veins within the cord branch extensively to form the _______________ __________ and _____________ in the Placenta

Answer 39

Chorionic Plate and Villi

Question 40

Chorionic Villi are bathed in maternal blood within the ____________________ spaces

Answer 40

Intervillous

Question 41

Fraternal twins are (Mono/Di)zygotic

Answer 41

Dizygotic (separate fertilized eggs)

Question 42

Identical twins are (Mono/Di)zygotic

Answer 42

Monozygotic (1 fertilized egg that divides)

Question 43

(Fraternal/Identical) twins are more common

Answer 43

Fraternal (80%)

Question 44

The Zygosity of twins can be determined by whether or not they share the ____________ and/or ____________

Answer 44

Chorion; Amnion

Question 45

Dizygotic twins are ALWAYS Dichorionic and Diamniotic (True or False)

Answer 45

True (because were two separately fertilized eggs)

Question 46

Why are Monozygotic twins variable in regards to sharing a Chorion and Amnion

Answer 46

Depends on when they divided

Question 47

Most common congenital anomalies of the Female Reproductive system involve the....

Answer 47

Uterus (depending on Mullerian duct formation/agenesis)