session 1 Flashcards
the gonds develop from three sourcea
1-primodial cells
2-mesodermal epithelium
3-mesenchymal cells
the germ cells forma in —–week
thrik week
the germ cells migriate at
4-6 week
when some female and male characteristics of the external genitalia can be recognized.?
By week 12,
, phenotypic differentiation is complete
By week 20
the genital duct give the male genitalia
the mesonephric duct (wollfrian duct)
the genital duct give the female gentalia
the paramesonephric duct (mullerian duct)
in influence of the SRDY GENE WHAT happen ?
medullary cords develop
cortical cords not develop
thick tunica albignia develop
in absence the influence of the SRDY GENE WHAT happen
medullary cords degenerate
cortical cords develop
no tunica albignia develop
what the mesonephric duct give in male
epididymis
vasa defenses
seminal vesicles
ejaculatory duct
the paramesonephric
1-fimbriae
2-middle and upper part of the uterine tubes
3-lower segment form the uterus
4- the vagina
Mesonephric Ducts remanant in female
Appendix Vesiculosa, Duct of Gartner
mesonephric tubules
epoophron.paraoophron
Paramesonephric Ducts remnant in the female
Hydatid of Morgagni
Gonads give in adult
male –Testes, Seminiferous Tubules, Tubuli Recti, Leydig Cells, Sertoli Cells.
female—Ovary, Primordial Follicles, Rete Ovarii .
the formation and canalization of uterus and vigina occur at
9 week
the ledying cells secret ——- at ———–
testosterone at 8 week
the lower third of vigina form by the ———-
two sinoveginal bulbs ———– from urogential sinus
sinoviginal blubs appear at ——–
the third month
The gubernaculum extends from the ovary to the junction of the uterus and uterine tubes (forming
ovarian ligment
where the ovaries descend ?
The ovaries are below the rim of the true pelvis
the lower third of vagina canalize at
5th week
define the vaginal plate.
the outgrowth of sinuoviginal blubs
when penile urethra form ?
At the end of third month the two urethral folds close over the urethral plate
when and how the distal uretera form?
This most distal urethra is formed during 4th month when ectodermal cells from the tip of the glans penetrate inward and form an epithelial cord.
This cord obtains a lumen and forms the external urethral meatus
The connectíon between the abdominal cavity and the processus vaginalis through the inguinal canal and into the scrotal sac normally close at
This most distal urethra is formed during 4th month when ectodermal cells .
