Reproductive System

    Reproductive System
    Choose the correct statement about LH or FSH.
    LH targets Leydig (interstitial) cells to produce testosterone. (FSH targets Sertoli (nurse/sustentacular) cells which (in the presence of testosterone) promote spermiogenesis).
    Author: rikazzz Comment
    Reproductive System
    From the list below, what do MEN have as part of their reproductive system that women do not?
    The remarkably named tunica vaginalis is the membrane that lines the scrotal cavity in men. Both women and men produce gametes, androgens and FSH.
    Author: rikazzz Comment
    Reproductive System
    What is the function of the epididymis?
    The epididymis store sperm for 2–3 months during which time they mature.
    Author: rikazzz Comment
    Reproductive System
    Where do FSH and LH come from?
    GnRH is released from the hypothalamus to stimulate the anterior pituitary gland to release FSH and LH.
    Author: rikazzz Comment
    Reproductive System
    What is the name of the tube that carries sperm from the testes to the prostate gland?
    The vas deferens (=ductus deferens) begins at the epididymis and ends at the ejaculatory duct in the prostate.
    Author: rikazzz Comment
    Reproductive System
    How many chromosomes does a human gamete have?
    A gamete (a sperm or egg) has 23 chromosomes, so when they fuse to form the fertilised egg, there is a total of 46 (=23 pairs).
    Author: rikazzz Comment
    Reproductive System
    What is a fertilised egg known as?
    The fertilised egg, before it begins to divide, is known as a zygote.
    Author: rikazzz Comment
    Reproductive System
    Which of the following is NOT a secondary sex characteristic?
    The penis is present at birth in male babies, so is a primary sex characteristic. The other choices all develop after puberty.
    Author: rikazzz Comment
    Reproductive System
    The male reproductive tract has two of each of the following structures EXCEPT for one of them. Which structure is present as a single structure?
    There is only one prostate gland at which place the two ejaculatory ducts join the urethra.
    Author: rikazzz Comment
    Reproductive System
    What is the name given to a young woman’s first menstrual period?
    Menarche is the first menstrual cycle, or first menstrual bleeding, in female humans.
    Author: rikazzz Comment