Key Area 2
(b) Hormonal control of sperm production
In Key Area 2b, we take a look at the role of hormones on sperm production. Let's meet FSH, LH, ICSH and releaser hormone.
Something to Read...
Open the document below and read the mandatory course notes provided by SQA for this Key Area. You may wish to use your home learning time to copy these notes into a jotter or choose a digital presentation format that suits your learning style.
Something to Watch...
Something to look at...
The following diagrams will support your understanding of the key SQA notes.
Testosterone - the male sex hormone produced by the interstitial cells of the testes and involved in the production of sperm and development of male sexual characteristcs.
The hormonal control of sperm production
Testosterone: can you have too much of a good thing?
The diagram to the right shows the negative feedback control of testosterone production. You can see the production of FSH and ICSH by the pituitary gland. These hormones act on the testes and stimulates testosterone production in the interstitial cells.
As the concentration of testosterone increases, the pituitary gland secretion of FSH and ICSH is inhibited, preventing further production of testosterone.
You are now ready for your in-class lesson on hormonal control of sperm production. Remember to bring any questions or queries with you.
You are now ready to move onto Key Area 2c: Hormonal control of the menstrual cycle.
