• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

The role of hormones in the female reproductive system.

Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  • Essay length: 857 words
  • Submitted: 19/06/2006
Share this essay:
University Degree Developmental & Reproductive Biology

The first 200 words of this essay...

The role of hormones in the female reproductive system

The oestrus cycle is the continuing process of fertility and non-fertility controlled by several hormones and the endocrine system. This consists of the hypothalamus, the anterior pituitary gland, the ovaries and the uterus, known as the hypothalamic-pituitary-ovarian-uterine axis. Oestrus normally lasts for 18 to 24 days but this figure can vary in specific circumstances such as early puberty when the cycle lasts for a lot less time (3 to 12 days) and also when the cycle commences after pregnancy and parturition (Fuquay 2002). The oestrus cycle halts during pregnancy due to the large amounts of progesterone in the blood supplied by the Corpus Luteium (CL). Progesterone is vital for maintaining pregnancy and also for stimulating the growth of mammary alveoli for the purpose of lactation.

Gonadotrophin releasing hormone (GnRH) begins a cascade of hormones through the animal that are responsible for the oestrus cycle taking place. It is secreted in a pulsating manner with rises and falls in concentrations from the hypothalamus where it is transported to the anterior pituitary gland. It is here that the GnRH controls the release of two protein hormones, luteinizing hormone

Read more
The above preview is unformatted text

Found what you're looking for?

  • Start learning 29% faster today
  • Over 150,000 essays available
  • Just £6.99 a month

  • "
    Markedbyteachers.com has really helped with my revision and is a valued resource for help with coursework. It has inspired me to write essays as good as the essays on the site. Definitely worth the investment.
    "
    Chris Mckellar. Media Studies, IT, English. A Level Student.
  • "
    Great help! A Service that allows you to look at other peoples work, which can give you ideas on how to set things out and what to include in your own work.
    "
    Zoey. University Student.

Marked by a teacher

This essay has been marked by one of our great teachers. You can read the full teachers notes when you download the essay.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review on the essay page.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review under the essay preview on this page.