Gential System

Question 1

what happens to the inguinal canal after process vaginalis takes place?

Answer 1

it closes around the spermatcord

Question 2

what allows the testes to move transabdominally

Answer 2

atrophy of the mesonephric ducts

Question 3

what week have the testes descended?

Answer 3

week 26

Question 4

hysterosalpinography is used for what

Answer 4

to diagnose if there is something wrong in the uterine tubes or uterus, for someone who has had multiple miscarriages

Question 5

double uterus?

Answer 5

inferior parts of the paramesonephric duct fails to fuse can have double or single vagina

Question 6

bicarbonate uterus means what

Answer 6

duplication of the superior part of the uterus

Question 7

unicornate ureters

Answer 7

one paramesonephric duct fails to form, leaving only one uterine tube

Question 8

double utuers refers to?

Answer 8

failure of the inferior parts of the paramesonephric ducts to fuse.

have double or single vagina

Question 9

where does the urethra open in agenesis of external genitalia

Answer 9

into the perineum near the anus

Question 10

anamalies of the uterine tube, uterus and vagina are due to what?

three things

Answer 10

incomplete fusion of the paramesonephric duct

failure for parts to develop

incomplete canalization of the vagina plate to form the vagina

Question 11

what is the most common cause of female pseudohermaphroidism

Answer 11

ACH-adrenocortical hyperplasia

the labia fuses and there is hypertrophy of the clitoris making it look like a penis but genotype is still 46XX

Question 12

what is male pseudohermaphroditism due to? (46 XY)

Answer 12

due to the inadequate production of testosterone and MIS by fetal testes.

Question 13

what is a true hermaphrodite?

Answer 13

someone who has ovarian AND testicular tissue in the same or opposite gonads

Question 14

are ovaires and testes functiona in true hermaphrodites?

Answer 14

no

Question 15

True hermaphroditism percentages

Answer 15

70- 46Xx
20- 46 XX/46XY
10- 46xy

Question 16

When can you truly document if a fetus is a boy or girl?

Answer 16

22-36 weeks

Question 17

Genotype is established when

Answer 17

At fertilization

Question 18

Embryo is sexually indifferent in what weeks

Answer 18

Week 1 to week 6

Question 19

Phenotypic sexual differentiation begins when

Answer 19

Week 7

Question 20

The three sources that the gonads derive from

Answer 20

Mesothelium (lines posterior abdominal wall)

Mesenchyme

Primordial germ cells

Question 21

Initial period of development is called?

Answer 21

Sexual development or indifferent stage

Question 22

What happens in week 5 in regards to the gonads

Answer 22

The mesothelium of the medial side of the mesonephros thickens, it prliferates and makes the gonadal ridge

Question 23

Gonadal cords do what

Answer 23

Grow into the underlying mesenchyme

Question 24

When do cells enter the underlying mesenchyme and are incorporated with the gonadal cords

Answer 24

Week 6

Question 25

Male phenotype is determined by what

Answer 25

TDF- testies determining factor

Question 26

Due to TDF what happens to the gonadal cords

Answer 26

They become seminiferous cords

Question 27

What determines male sexual differntiation

Answer 27

Testosterone and ADH

Question 28

Primary female differentiation depends on what

Answer 28

Not hormones! It will happen even if ovaries are not present

Question 29

TDF makes the gonadal cords do what in the medulla

Answer 29

Extend and form rete testes

Question 30

What happens to the primary sex cord in men

Answer 30

It extends into the medulla and becomes the tunica albugenia

Question 31

Seminiferous tubules are separated by mesenchyme that has what

Answer 31

Leydig cells

Question 32

When do leydig cells secrete the androgen hormones testosterone and Androstenedione, the hormones that induce masculine differentiation of mesonephric ducts and external genitalia

Answer 32

Week 8

Question 33

aMH-

Answer 33

Antimullerian hormone

Question 34

Female duct is called? Make duct is called?

Answer 34

Mullerian Wollfian

Question 35

What produces AMH

Answer 35

Sertoli cells

Question 36

What does AMH do

Answer 36

It surprises the paramsonephric ducts from developing to form the uterus and uterine tube

Question 37

Seminiferous tubules remain solid with no lumen until when

Answer 37

Puberty

Question 38

What are the two cells in the walls of the seminiferous tubules

Answer 38

Sertoli and spermatogonia Seritoli comes from surface epithelium of testes Spermatogonia comes from primordial germ cells

Question 39

When do the gonadal cords appear for female | And they extend to form what

Answer 39

Week 10 form rete ovarii

Question 40

What week do the cortical cords break up into isolated cell clusters and form ongoing covered in follicular cells

Answer 40

Week 16

Question 41

Oocytes (primary)

Answer 41

5 month 7million Birth- 2 million Puberty 40,000

Question 42

When do the genital ducts develop , mullerian or wolffian

Answer 42

Week 5 or 6

Question 43

When do leydig cells produce testosterone? | Sertoli - aMH?

Answer 43

Week 8 week 7/6

Question 44

hCG stimulates what

Answer 44

Testosterone production

Question 45

Testosterone does what to the mesonephric ducts

Answer 45

Induces them to become highly convoluted and form epididymis

Question 46

In the absence of aMH what happens

Answer 46

Müllerian ducts form

Question 47

Myometrium comes from

Answer 47

Splanchnic mesenchyme

Question 48

Urogenital sinus and vagina are separated by?

Answer 48

Hymen

Question 49

Gartners duct,

Answer 49

Remnants of mesonephric duct in adult women

Question 50

Remnants of the mesonephric tubules in women are

Answer 50

Epoophron and paroophoron

Question 51

Genital tubercal develops from proliferation of mesenchyme when

Answer 51

Week 4