lec 11 Flashcards
in female, in which week the cortical cords appear ?
7th
in female, the cell clusters degenerate and disappear, and are replaced by
vascular stroma that forms ovarian medulla
In ——–, the cortical cords split into isolated cell clusters called ————– (female)
4th Mon
primordial follicles
in male, As mesonephros degenerates, some mesonephric tubules persist and are transformed into
efferent ductules
The cranial part of each mesonephric ducts become
epididymis
Prostate develop as multiple —————– from ————
endodermal outgrowths
prostatic part of urethra
in prostate development
The glandular epithelium differentiates from
The connective tissue and muscle differentiate from
endoderm
adjacent mesenchyme
Bulbourethral glands are two pea-sized glands developed as two————– from ————–
endodermal outgrowths
penile part of urethra
unfused cranial parts of paramesonephric ducts forms ——–
caudal, fused portions form ————
uterine tubes
uterovaginal primordium, which gives rise to uterus and the superior portion of vagina
The endometrial stroma and myometrium are derived from
surrounding mesenchyme
Fusion of paramesonephric ducts leads to the formation of two ligaments and two compartments
brings together two peritoneal folds that form right and left broad ligament
two peritoneal compartments, rectouterine pouch and vesicouterine pouch
The vaginal lining epithelium is derived from
endoderm of urogenital sinus
fibromuscular wall of vagina develops from
surrounding mesenchyme
the sinovaginal bulbs proliferate and fused to form
vaginal plate
each part of the vaginal plate forms
central cells
peripheral
break down, forming lumen of vagina
vaginal lining epithelium
vaginal outgrowth is entirely canalized by ———
5th month
The vaginal fornices are of ————— origin
paramesonephric
vagina has a dual origin, with upper portion derived from ——————- and lower portion derived from ————-
uterovaginal primordium
urogenital sinus
The hymen consists of
epithelial lining of the sinus and a thin layer of vaginal cells
Outgrowths from urogenital sinus form bilateral ————
great vestibular (Bartholin) glands
Cranial to cloacal membrane, the cloacal folds unite to form——–
Caudally the folds are subdivided into —————- anteriorly and ——— posteriorly.
genital tubercle
urethral (urogenital) folds
anal folds
the cloacal folds are formed by the migration of mesenchyme cells originating in region of ————- migrate around cloacal membrane in the ———- week
primitive streak
3rd
Distinguishing sexual characteristics begin to appear during ————-, but however, external genitalia are not fully differentiated until ————–
9th W
12th W
the phallus is formed from the elongation of ———– by the influence of —————
genital tubercle
testosteron
urethral plate in male is formed from ———– origin
endodermal (urethral folds)
At end of————, the two urethral folds fuse with each other and close over urethral plate to form ————
3rd Mon
penile urethra
The most distal portion of urethra is formed during the ———– , from an ———– origin
4th Mon
ectodermal
The corpora cavernosa and corpus spongiosum develop from
mesenchyme in phallus.
in female the genital tubercule elongates slightly to form
clitoris
in the female the urethral folds ————— form ————–
do not fuse
labia minora
Between anterior and posterior commissures, labial swellings remain unfused and form
labia majora
during early stages of development the labia minora is (smaller/larger) ————– in female than males
larger
