final chp 12 reproductive

Question 1

when does the reproductive system develop?

Answer 1

5-6th week

Question 2

what week is sex identification possible?

Answer 2

8th week

Question 3

development of the gonads?

Answer 3

• coelomic epithelium
• inner mesenchyme tissue
• primordial germ cell

Question 4

what is the genital ridge covered by?

Answer 4

coelum epithelium

Question 5

the development of cells causes the genital ridge to bulge into the?

Answer 5

coelum

Question 6

what makes up the inner mass of the genital ridge?

Answer 6

mesenchyme

Question 7

the cells within the genital ridge arrange themselves into what?

Answer 7

sex cords

Question 8

the sex cords grow into underlying?

Answer 8

mesenchyme

Question 9

when the sex cords grow into the mesenchyme they become?

Answer 9

primary sex cords

Question 10

the indifferent gonad has what two thingsz?

Answer 10

cortex and medulla

Question 11

the cortex has an outer layer and during development in males it? in females?

Answer 11

in males it regresses

in females the cortex develops

Question 12

the medulla is the inner layer and during development in males it? in females?

Answer 12

in males it develops

in females it regresses

Question 13

during the development of the ovaries the primordial germ cells migrate to the?

Answer 13

surface epithelium and forms the cortical cords

Question 14

during the development of the ovaries at the 16th week, what happens?

Answer 14

the cortical cords break up into primordial follicles

Question 15

the mesonephric ducts play an important role in which sex?

Answer 15

male reproductive system

Question 16

what is formed from the mesonephric ducts in males?

Answer 16

epididymis
ductus deferens
ejaculatory duct
cranial part-efferent ?

Question 17

in females the paramesonephric ducts develops where?

Answer 17

they develop on each side of the body

Question 18

in females what ducts open into the coelum, pass caudally along the side of the mesonephric duct, and the caudal end fueses to form the Y shape?

Answer 18

paramesonephric ducts

uterovaginal- uterus and vagina

Question 19

the genital tubercle develops where?

Answer 19

at the upper end of the cloacal

Question 20

during the development of the genitalia labioscrotal _________ and urinogenital ______ develop

Answer 20

labioscrotal swelling and urinogenital folds develop

Question 21

during development of the genitalia, the genital tubules elongates to form?

Answer 21

a phallus

Question 22

what are some symptoms of ovarian hypoplasia?

Answer 22

• small ovary size
• poor breast development
• small uterus
• only some ovarian function

Question 23

ovarian hypoplasia can be associated with what syndrome?

Answer 23

turner’s syndrome

Question 24

true or false

turner’s syndrome can be unilateral or bilateral?

Answer 24

true

unilateral affected can give birth to a normal infant

Question 25

Bilateral ovarian hypoplasia will contain what?

Answer 25

very few primordial germ cells

Question 26

when affected by bilateral ovarian hypoplasia, six months after birth they will have no?

Answer 26

NO oocytes even after 6 months

Question 27

during bilateral ovarian hypoplasia what stimulates the fetus' cells?

Answer 27

mother's hormones

Question 28

during a bilateral ovarian hypoplasia few primordial germ cells reach what?

Answer 28

when migrating from yolk sac, few reach the genital ridges

Question 29

during pure gonadal dysgenesis what do the germ cells do?

Answer 29

the germ cells do not migrate from the yolk sac

Question 30

what is the karotype for those affected by pure gonadal dysgenesis?

Answer 30

normal karotype 46,xx 46,xy

Question 31

what are the physical characteristics of those affected by testicular feminization syndrome?

Answer 31

appears as a normal female - despite presence of testes - not noticed in childhood - raised as female

Question 32

the karotype of those affected by testicular feminization syndrome?

Answer 32

chromatin negative genetic male | 46,XY

Question 33

what does chromatin negative mean?

Answer 33

containing a sex chromatin- a characteristic of the nuclei of cells in a normal male

Question 34

what does chromatin positive mean?

Answer 34

containing a sex chromatin- a characteristic of the nuclei of cells in a normal female

Question 35

what sex organs are present in true hermaphroditism?

Answer 35

both ovaries and testes are present

Question 36

true or false | in true hermaphroditism, gonadal tissue can be found only bilaterally?

Answer 36

false | can be found bilateral or unilateral

Question 37

what percentage of true hermaphrodites are chromatin positive?

Answer 37

70%

Question 38

what are the karotypes of true hermaphrodites?

Answer 38

mosaicism (chimera) has been reported 46,XX/46,XY 46,XX/47,XXY

Question 39

what does mosaic mean?

Answer 39

mixture of cells with different karotypes

Question 40

what is hypospadias?

Answer 40

the urethral opening is on the ventral side of the penis instead of the tip - glandular - penile - penoscrotal - perineal

Question 41

what is epispadise?

Answer 41

urethral opening on the dorsal side of the penis instead of the tip