Lab 4: Repro Flashcards
What joins to the prostate?
Ejaculatory duct (from the seminal vesicle)
What leads to the testis?
Ductus deferens
Middle part of uterine tube?
Isthmus
End part of uterine tube?
Ampulla
End of uterine tube?
Fimbriae (infundibulum)
Is labia major or minor more ventral?
Major
What’s located in the interstitial space in a testis?
Blood vessels
Leydig cells
Separates things in the seminiferous tubules?
Basement membrane
Lines the basement membrane?
Spermatogenia
Order of sperm from basement membrane to lumen of seminiferous tubules?
Spermatogenia
Spermocytes
Spermatatids
Spermatozoon
Where are Sertoli cells?
In the seminiferous tubules (supports growth)
When is ovulation?
When LH peaks
Where is FSH and LH produced?
Anterior pituitary
Where is estrogen and progesterone produced?
Ovaries
How does ovulation occur?
FSH stimulates primary follicles, which secrete oestrogen, which feeds back to LH (releasing it) which causes the maturation of the tertiary follicle (hence ovulation)
What peaks before LH?
Oestrogen
What does rising progesterone levels after ovulation do?
Maintains corpus luteum and endometrium lining
If fertilisation and implantation doesn’t occur, what hormone levels fall?
Estrogen and progesterone
Upon fertilisation, to prevent the loss of endometrial lining, what does the developing offspring secrete and what does it do?
Secretes hCG (mimics LH) which prevents the corpus luteum from disintegrating, and stimulates the secretion of estrogen and progesterone
What do increasing levels of oestrogen and progesterone that don’t drop off indicate?
Pregnancy
What do decreased levels of all hormones indicate?
Menopause, pre-puberty, female athlete triad, anorexia
What’s specific to a primordial follicle?
Squamous flat cells (follicular cells)
No zone pellucida
What’s specific to a primary follicle?
Zona pellucida
Cuboidal granulosa cells
What’s specific to a secondary follicle?
Antrim/Antral cavity with follicular fluid
Corona radiata occurs
What’s specific to a graafian/mature/pre-ovulatory follicle?
Cumulus oophorus
Barrier contraception?
Condom Ortho diaphragm (seals cervix)
Surgical contraception?
Vasectomy
Tubal ligation
Hormonal contraception?
Oral contraceptive pill
Hormonal and chemical contraception?
IUD (intrauterine tube)
What do oral contraceptives with progestin and estrogen inhibit?
Ovulation by suppressing FSH and LH
