x exam 2 reproductive development

Question 1

internal reproductive organ from

Answer 1

intermediate mesoderm

Question 2

primordia of male and female form in

Answer 2

both genders

Question 3

when both present

Answer 3

indifferent stage

Question 4

gametes originate

Answer 4

yolk sac endoderm and splanchnic mesoderm

Question 5

urogenital ridge of ntermediate mesoderm

Answer 5

genital ridge

Question 6

gametes invade

Answer 6

genital ridge

Question 7

epithelial cells of mesonephric tubules

Answer 7

invade genital ridge
surround and form vesicles around gametes
=gonadal cords (primitive sex cords)

Question 8

genital ridge is located

Answer 8

ventromedially

Question 9

paramesonephric ducts

Answer 9

from lateral to mesonephric kidney

Question 10

in caudal region curve

Answer 10

medially and meet with other duct

Question 11

common parmesonephric duct enters

Answer 11

urogenital sinus

Question 12

initially caudal to

Answer 12

mesonephric/metanephric ducts

Question 13

gonadal cords form

Answer 13

solid tubes

Question 14

tubes become

Answer 14

patent after birth (seminiferous tubules)

Question 15

gonadal cords form solid tubes

Answer 15

tubes become patent after birth = seminiferous tubules

Question 16

mesonephric tubules form

Answer 16

rete testis and efferent ducts

Question 17

rete testis connect seminiferous tubules to

Answer 17

efferent ducts

Question 18

connective tissue of gonadal ridge form

Answer 18

primordial tunica albuginea (capsule surrounding testis) to separate gonad from coelom

Question 19

appearance

Answer 19

1st definitive differentiation as a testis

Question 20

primordial germ cells become

Answer 20

spermatogonia

Question 21

mesonephric tubule epithelial cells

Answer 21

sustentacular (sertoli) cells

Question 22

mesodermal cells of gonadal ridge

Answer 22

interstitial cells

Question 23

paramesonephric ducts will

Answer 23

degenerate

Question 24

review descent of testis

Answer 24

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