Science Quiz / Male reproduction

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Can you name the HYTQ of Male reproduction?

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

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