Oxytocin and endorphin.
Yes,fsh initiate spermatogenesis in males but in the presence of some other hormones which also play important role in spermatogenesis e.g.,lh
Ca++ ions initiate the movements but actin and myosin hormones regulates it.
Yes, oxytocin being the primary culprit.
Oxytocin
Possible activation of several different second messenger systems.
check this powerpoint. http://www.slideshare.net/AlbanyHighSchool/chapter45
Estrogen
Hormones. The endocrine system consists of various glands that work together to secrete compounds into the blood known as "hormones". These hormones act in various ways on various tissues, controlling metabolism, neurological function, etc. Hope this helps. -Cheers P.S. For additional information, try to learn more about the relationship between the hypothalamus, the anteriour pituitary, and the adrenal gland. This system is a great example of how hormones act "trophically" on other hormones to initiate physiological responses.
The question is incomplete. There are no options given (for "which of the following") to answer this question.
When the baby is ready and sends out hormones that make contractions start
The council is prepared to initiate our latest initiate. "Initiate sequence!", shouted the Mission Commander.