Science Quiz / Male reproduction

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Can you name the HYTQ of Male reproduction?

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Which enzyme catalyzes the conversion of cholesterol to progestins
seminal fluid accounts for what percentage of total ejaculate
How many days does spermatogenesis take?
Which cells are responsible for removing damaged germ cells from the testes?
What type of junctional complex helps maintian the blood testes barrier?
Which hormone binds to the same receptor as LH?
Which two enzymes catalyze the conversion of progestins to androgens?
this gland is involved in producing pre=ejaculate
involved in production of a substance that gives ejaculate its alkaline nature
Luteinizing hormone acts on which cell in males?
______ acts on gonadotophs to prevent the release of FSH
sperm accounts for what percentage of total ejaculate
produces seminal fluid containing nutrients, fructose, and prostaglandins
testosterone serves as a negative feedback regulator for the release of what hormone?
pH of prostatic fluid
catalyzes the conversion of testosterone to estradiol?
Which cell maintains the blood testes barrier?
testosterone travels in the blood bound to what protein?
Which cells provide nourishment to developing germ cells?
synthesizes androgen binding protein
Testosterone concentration is ____ times higher in the testes than the blood.
The release of what substance from the nerve terminal of the cavernous nerve causes vasodilation?
True or False: The epididymis is involved in sperm production.
T/F: The exogenous administration of testosterone can lead to infertility
T/F: Drugs like viagra work by inhibiting the enzyme (Type V phosphodiesterase), which catalyzes the breakdown of cGMP (cGMP stimulates vasodilation).
GnRH is composed of ____ amino acids.
T/F: Testosterone, estradiol, and DHT provides positive feedback regulation at the hypothalamus and anterior pituitary gland.
The binding of Testosterone to what protein helps keep a steady supply of it in the testes.
sex binding hormone binding globulin is made in which organ?
T/F: germ cells express estrogen receptors which optimize spermatogenesis.
Which hormone causes baldness and hair recession in males that are aging?
Which portion of the autonomic nervous system controls erection?
FSH acts on which cell in males?
synthesizes inhibin

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