Development Of The Reproductive System Flashcards
Which part of the mesoderm does the mesonephric duct derive from?
Intermediate mesoderm
What does the coelomic epithelium give rise to in the reproductive system
Somatic support cell and mullerian duct derivatives
What does the endoderm give rise to in the reproductive system?
Caudal vagina, pelvic and penile urethra, accessory glands e.g. Prostate
Where do the primordial germ cells come from?
The yolk sac
When do the germ cells arrive at the primitive gonads?
5 weeks
When do the germ cells populate th genital ridges?
6 weeks
What do the genital ridges form from?
The coelomic epithelium
When do the gonads acquire male or female morphological characteristics?
7th week
What is the name of the pluripotent tumour counting for 3% of childhood malignancies?
Sacrococcygeal teratoma
Which 2 genital ducts are present in both males and females?
Mesonephric duct and müllerian ducts
What are the somatic support cells in the ovary called?
Follicular cells
What are the surrounding interstitial cells in the ovary called?
Thecal cells
What happens to the primitive sex cords in
A) females
B) males
A) they dissociate
B) they continue to proliferate
What are the somatic support cells in the testix called?
Sertoli cells
What are the interstitial cells of the testis called?
Leydig cells
When do the ducts regress?
Weeks 8-10
In females, what do the müllerian ducts form?
Fallopian tubes, uterus, upper vagina
In females, what are the remnants of the mesonephric ducts and tubules?
Epoöphoron, paroöpharon, gartners cysts
Which ducts fuse to form the uterus?
The müllerian ducts
What is the cause of a double uterus?
Müllerian ducts have failed to fuse
What is the broad ligament of the uterus formed from?
Peritoneal membrane
Where do the sinovaginal bulbs form?
Where the müllerian ducts contact the urogenital sinus
What do the sinovaginal bulbs form?
The vaginal plate
In males, what do the mesonephric ducts and tubules form?
Epididymis, vas deferens, seminal vesicle, efferent ductales
