Repro Flashcards
Point in time when fetus is most at risk to teratogens? Why?
3-8 weeks dt organgenesis taking place
What secretes MIF during male devo?
Sertoli cells
Male devo process?
What cell types make what hormone? What do they do?
SRY gene of Y chromo produces TDF (testes devo factor)
From this comes:
Sertoli–>MIF–l Female devo
Leydig—>Androgens–>Male devo (testo=internal male, DHT=external male genitalia)
Bicornate Uterus: how? Presentation?
Failure of fusion of the paramesonephric ducts. Repeated miscarages
Most common cause of developing both male and female internal genitalia and male external
No sertoli cells thus get devo of both paramesonephric and mesonephric ducts
5 alpha reductase def phenotype?
Cannot convert Test into DHT thus ambigus gentilia until puberty when you have enough of a surge to promote virulization
Gubernaculum in females
Ovarian ligament and round ligament
Broad ligament. Contains?
“Wing” between the Fallopian tube, ovaries and Uterus.
Contains Round ligament inside it
Suspensatory Ligament (Infundibulopelvic ligament) of ovaries. Contains?
Connects ovaries to lateral pelvic wall.
Contains Ovarian vessels (need to be ligated before ophorectomy). Ureter courses retroperitoneally and risk for injury during ligation.
Cardinal Ligament. Contains?
Connects cervix (C-ardnial C-ervix) to pelvic wall. Contains Uterine Vessels (risk during hysterectomy)
Round ligament. Contains?
Uterine fundus to labia majora (contination of Suspensatory ligament and female version of gubernaculum).
Contains nothing
Ovarian ligament? Contains?
Medial Ovary to lateral uterus (derivative of gubernaculum)
Contains nothing.
Pathway of Sperm during ejaculation?
SEVEN UP
Seminiferous tubules, Epididymis, Vas Deferens, Ejaculatory Ducts, (Nothing), Urethra, Penis
Gene associated with high rates of endometrial cancer?
PTEN mutations
Post menopausal bleeding?
Cancer until proven otherwise.
Uterine Contraction?
Uterine Relaxation?
Contraction: PG and Oxytocin
Relaxation: B2
Older woman with distended abdomen. Upon biopsy there is copious amount of gelatinous material.
Pseudomyxoma Peritonei (“JELLY BELLY”) from mucinous ovarian tumor thats seeded peritoneum.
Leydig Cell tumor unique feature?
Reinke crystals
Testicular Tumor Markers: Seminoma Yolk Sac tumor Choriocarcinoma Embyronal carcinoma
Seminoma: Placental alkaline phosphatase/LDH
Yolk Sac tumor: Alpha feto protein
Choriocarcinoma: Beta-hCG
Embyronal carcinoma: Alpha feto AND beta hCG
Presentation of complete androgen insensitivity?
Tall, Large breasted, hairless, blind vaginal pouch, testis in labia—remove post puberty to prevent seminoma risk
OCP mechanism?
Continous levels of E2/P4 which prevent LH surge thus no ovulation
Where does the majority of a females: DHEAS Androsteindione Testosterone DHT come from?
DHEAS/Androsteindione comes from adrenals. (AnDRo from ADrenals)
DHT/Testosterone comes from ovaries.
Increased estrogen exposure puts woman at risk for? Examples?
Breast cancer. Anvulatory cycle (also at risk for endometrial), early menarche, late menopaus, obesity, increased breast tissue
Best marker of a healthy pregnancy towards end of preg?
E3 levels made by placenta. E2:E3 ratio remains 1:1 (competing for same estrogen receptor) until the end when E3 increases dramatically causing uterine contractions.