High Yield Exam Cram Flashcards
Describe the process of oocyte maturation
Describe the process of sperm development
How many days does it take to produce a sperm?
64 days
In the male, which cells does LH act upon?
LH acts on Leydig cells which make testosterone (negative feedback via testosterone)
In the male, which cells does FSH act upon?
FSH acts on Sertoli cells which produce Sperm (negative feedback via Inhibin)
fSh, Sertoli, Sperm
What is a normal sperm count?
> 15 million/ ml
What is a normal sperm motility (%)?
> 32%
which cells produce oestrogen?
Granulosa cells
What stimulates granulosa cells to produce oestrogen?
FSH
(F is next to G in the alphabet - Fhs Granulosa)
What produces progesterone?
Corpus luteum
What stimulates theca cells?
LH
(t and L look similar)
What do theca cells produce?
Androgens
thecA Androgens
Which hormone drives the follicular phase?
Oestrogen
Which hormone spikes and results in ovulation?
LH
Which hormone drives the luteal phase?
Progesterone
When in the cycle is the follicular phase?
0-14 days
On which day does ovulation occur?
14
on which day of the cycle does menstruation start?
day 28
List the stages of embryo implantation
Which part of the blastocyst forms the baby and which part forms the placents?
inner cell mass forms the baby
outer shell of trophoblastic cells forms the placenta
What hormones are needed during embryogenesis to form male genitals?
Testosterone and anti-mullerian hormone
Which hormone is needed during embryogenesis to form testes? (bonus points if you remember the gene that encodes it)
Testes determining factor produced from the SRY gene
What is
A) Gravidity
B) Parity
Gravidity = Total number of pregnancies, including miscarriages and terminations (Grand Total)
Parity = Number of pregnancies that Progressed past 24 weeks
What ultrasound scan sign is associated with - dichorionic/diamniotic twins?
lambda sign