Puberty and The Hormones Involved | Physiology | Biology | FuseSchool Hormones are chemical messengers secreted by glands and have specific target organs. In this lesson, you will learn about hormones that stimulate changes to your body during puberty. Puberty is the timeframe when secondary sexual characteristics develop – in other words, when a boy matures physically to a man, and a girl to a woman. In males, testes secrete a hormone called testosterone, also known as the male hormone. Testosterone stimulates a wide variety of physiological changes, including increased body hair (especially on your face and in your armpits), more muscle mass, and your voice deepening. As well, testosterone also stimulates sperm cell production in your testes. In females, the hormone responsible for physical changes during puberty is oestrogen, also known as the female hormone. It is secreted by your ovaries and is responsible for some body hair growth, widening of the hips, and development of breasts. Oestrogen also plays an important role in regulating the menstrual cycle, as described in more detail in another lesson. It thickens the uterus lining in anticipation of ovulation, which is the release of a mature egg from an ovary. In addition, oestrogen stimulates the pituitary gland to secrete the luteinising hormone, which is directly responsible for ovulation. Progesterone is another hormone secreted by your ovaries, and works to maintain the uterus lining thickened by oestrogen. This continues to occur even during pregnancy, so to support the growing foetus. In conclusion, the development of secondary sexual characteristics during puberty is stimulated by testosterone in males, and oestrogen in females. Oestrogen and progesterone are important hormones in regulating the menstrual cycle in females. SUPPORT US ON PATREON https://www.patreon.com/fuseschool SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you. These videos can be used in a flipped classroom model or as a revision aid. Find all of our Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV Find all of our Biology videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlQYSpKryVcEr3ERup5SxHl0 Find all of our Physics videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTWm6Sr5uN2Uv5TXHiZUq8b Find all of our Maths videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTKBNbHH5u1SNnsrOaacKLu Instagram: https://www.instagram.com/fuseschool/ Facebook: https://www.facebook.com/fuseschool/ Twitter: https://twitter.com/fuseSchool Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org Follow us: http://www.youtube.com/fuseschool Befriend us: http://www.facebook.com/fuseschool This is an Open Educational Resource. If you would like to use the video, please contact us: [email protected]

Puberty and The Hormones Involved | Physiology | Biology | FuseSchool
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