Reproduction Flashcards
What is an oogonium
progenitor cell to primary oocytes - produced by mitosis
What cell stage of meiosis are oocytes held in?
arrested in metaphase 1
What are theca cells?
external layer of follicle
What are Type A and B spermatogonia
Type A replenish pool of spermatogonia
Type B divide by mitosis to 2 primary spermatocytes which then undergo meiosis
What are the mesonephric ducts?
fetal ducts that drain the kidney to cloaca
becomes the vas deferens - connecting testis to prostate
degenerate in women
paramesonephric ducts
degenerate in men
becomes fallopian tubes, uterus and upper 1/3 of vagina in women
What are the male genes
SRY
SOX9
What are the female genes
WNT4a
FOXL2
RSPO1
What is in the spermatic cord
3 arteries, veins, nerves, facias, and others
- Testicular, Cremaster, and Vas Vessels
- Cremaster, Genitofemoral, Sympathetic nerves
- Facial layers from abdominal muscles - internal and external spermatic + cremasteric
- Vas deferens, Processes vaginalis, Lymphatics
What cellular structures form the blood testis barrier
tight junctions between Sertoli cells
What stimulates endometrium proliferation
oestrogen and progesterone
what is the difference between proliferative and secretory endometrium?
Proliferative - 10 days post-menses -regrowing glands and vessels -tubular glands are straight -mitotic figures present Secretory - Ovulation day 14-16 -Cells have large vacuole -spiral arteries -oedematous stroma
Where is Melatonin released from
Pineal gland
what is produced in the zona glomerulosa
Aldosterone (mineralocorticoids)
what part of the adrenal gland produces androgens
Zona reticularis
