What area of the embryo has the potential to develop into male or female gonads?
Bipotential gonad ridge
Which named ducts develop into the genital tract in
a) Wolffian duct
b) Mullerian duct
Which hormone is produced by the testes and encourages development of the male genital tract?
Which genital tract develops in the absence of testosterone?
Female genital tract
The presence of a Y chromosome causes the development of the ___ genital tract.
The absence of a Y chromosome causes the development of the ___ genital tract.
female genital tract
XX OR XO
A congenital insensitivity to androgens i.e testosterone causes what presentation?
Male with external female genitalia but no uterus or ovaries
Often brought up as female until puberty
There is a fold of ___ around the scrotum.
What disease can develop from this?
Where do the testes develop?
Which muscles contract to lift the scrotum in cold temperatures?
Dartos / cremasteric muscle
What is another name for undescended testes?
Having undescended testes increases a patient's chances of developing which disease?
Sperm cell cancer
Within the testes, which cells
a) produce testosterone
b) support sperm cells?
a) Leydig cells
b) Sertoli cells
Describe the production of FSH and LH by the anterior pituitary in
Which hormone is released in a pulsatile manner by the hypothalamus?
Which hormone triggers spermatogenesis in men?
Which hormone triggers testosterone secretion by Leydig cells?
Which hormone is released by Leydig cells and stimulates spermatogenesis?
Which enzymes do sperm cells use to digest the zona pellucida of an egg?
Which reaction stops multiple fertilisations of an egg cell?
Which nervous system controls erection?
PS - point & shoot
What is the most common cause of infertility?
for a variety of reasons
What is thought to be causing a decrease in male fertility (sperm counts)?
Male infertility can be ___ or ___.
What are some obstructive causes of male infertility?
What are some non-obstructive causes of male infertility?
Genetic syndromes e.g Klinefelter's
Endocrine disease (virtually all of them)
What is a chromosomal disorder which causes male infertility?
What is the most common endocrine cause of male infertility?
What chronic endocrine disease commonly causes erectile dysfunction?
Male bodybuilders who use which type of drug are at risk of male infertility?