Need an research paper on human reproductive biology question. Needs to be 5 pages. Please no plagiarism. Increased hypothalamus functions causes secretion of follicle stimulating hormone that mark the onset of puberty (Wilkosz et al., 6). FSH stimulates ovarian follicle to secrete oestrogen and adrenal gland to secrete androgens. Sex steroid causes secondary sexual characteristics of puberty.Sperms develop from spermatogonia mature into primary spermatocytes. Secondary spermatocytes form after first meiotic division of the primary spermatocytes. Secondary spermatocytes undergo second meiotic division to spermatids. Both divisions take place in the seminiferous tubules after which spermatids migrate to the sertoli cells (McLafferty et al., 38). Maturation of spermatids into spermatozoa involves leydig cells that produce GnRH, LH (ICSH), DHT, testosterone, ABP, and inhibin that regulate spermatogenesis.The epididymis stores mature sperms. Upon sufficient stimulation, spermatozoa move through vas deferens, ampulla, ejaculatory duct , urethra then outside the body. The tubular pathway contracts to propel the ejaculate. Semen consist of secretions form the prostate, seminal and seminal vesicles.
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more