Embryology

Question 1

What is this equation for? (large baby - small baby) / large baby

Answer 1

IDK

Question 2

Percent of deliveries with both vertex babies

Answer 2

40%

Question 3

Percent of deliveries with fetus A vertex and fetus B breech

Answer 3

25%

Question 4

Percent of deliveries with fetus A breech and fetus B vertex

Answer 4

15%

Question 5

Percent of deliveries with both fetuses breech

Answer 5

10%

Question 6

What percent of twins are dizygous?

Answer 6

66% (8/12)

Question 7

What percent of twins are monozygous?

Answer 7

33% (4/12)

Question 8

What percent of mono twins are dichorionic/diamnionic?

Answer 8

1/3

Question 9

What percent of twins are monochoronic/diamnionic?

Answer 9

2/3

Question 10

What day does splitting of the egg in monozygous twins occur to produce di-di twins?

Answer 10

0-3

Question 11

What day does splitting of the egg in monozygous twins occur to produce monochorionic-diamnionic twins?

Answer 11

4-8

Question 12

What day does splitting of the egg in monozygous twins occur to produce mono-mono twins?

Answer 12

9-12 (this occurs <1% of the time)

Question 13

What day does splitting of the egg in monozygous twins occur to produce conjoined twins?

Answer 13

13+ (occurs <1% of the time)

Question 14

What is the most common type of conjoined twin (where are they conjoined)?

Answer 14

Thoracoagus

Question 15

Is a fertilized egg haploid or diploid?

Answer 15

Haploid (n) + Haploid (n)

Question 16

What cell stage is a zygote (sperm and egg nuclei) in?

Answer 16

Metaphase

It is diploid (2n)

Question 17

How many days post fertilization is an embryo a morula (16 cells)?

Answer 17

2-3 days

Question 18

How many days post fertilization is an embryo a blastocyst (32 cells)?

Answer 18

4-5 days

Question 19

What is the male homologue of the paraurethral glands?

Answer 19

Prostate gland

Question 20

What is the male homologue of the labia majora?

Answer 20

Scrotum

Question 21

What is the male homologue of the labia minora?

Answer 21

Median raphe

Question 22

What is the male homologue of the round ligament?

Answer 22

Gubernaculum testis

Question 23

What is the male homologue of the Gartner’s duct?

Answer 23

Vas deferens

Question 24

What is the male homologue of the clitoris?

Answer 24

Phallus

Question 25

What is the male homologue of the bartholin?

Answer 25

Cowper

Question 26

What is the male homologue of the Uterus

Answer 26

Utricle prostaticus

Question 27

What is the male homologue of the vestibular bulb?

Answer 27

Corpus spongiosum

Question 28

What is the male homologue of the granulosa?

Answer 28

sertoli