Repro System Flashcards
What is the role of testosterone?
Development and maintenance of male characteristics and fertility
- male sex development
- spermatogenesis
- sexual behaviour
- muscle development
What is the role of oestrogen?
Development and maintenance of female characteristic and fertility
- female sex development
- regulation of the menstrual cycle
- growth of the endometrium
- bone growth
What is the main site of oestrogen production?
Granulosa cells of the growing follicle
What is the role of progesterone (type of progestagen)?
Prepare for pregnancy and it’s maintenance
What site produce progesterone?
Corpus luteum and the placenta
What is the first endocrine sign of puberty?
An increase in plasma LH levels (resulted by an increase in GnRH release
What is the first endocrine sign of puberty?
An increase in plasma LH levels in nighttime(resulted by an increase in GnRH release.
In late puberty, daytime LH pulses also increaaes
What is the range of number of sperms produced PER gram of testis(average 20g) PER second for a mature male?
300-600 sperms per gram per second
What is the normal sperm count for a fertile male?
(~>) 20 million / ml
2.5ml per ejaculate normally (2-5ml)
What is the pH of semen?
Approx 7.5
What is the pH of prostatic fluid?
Slightly acidic, 6.5
BPH prevalence in men according to age
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