/** * https://gist.github.com/samthor/64b114e4a4f539915a95b91ffd340acc */ (function() { var check = document.createElement('script'); if (!('noModule' in check) && 'onbeforeload' in check) { var = false; document.addEventListener('beforeload', function(e) { if (e.target === check) { = true; } else if (!e.target.hasAttribute('nomodule') || !) { return; } e.preventDefault(); }, true); check.type = 'module'; check.src = '.'; document.head.appendChild(check); check.remove(); } }());

Biological response: Video playlist

Part of Biology (Single Science)Biological response

Hormones in human reproduction

Description

Hormones are secreted by glands in the endocrine system. During puberty, hormones create changes in physical and emotional characteristics. In this video, Greg Foot describes the interaction of FSH, LS, oestrogen and progesterone in the menstrual cycle.

Find out more about GCSE Biology.

Biological response

Now playing video 4 of 5