Sex Hormones In Humans
Overview
At puberty the body rebuilds itself, and the architects are two hormones: testosterone in boys and oestrogen in girls. The same kind of chemical messengers then run a monthly cycle in women that prepares the body for a possible pregnancy, building up the lining of the uterus and then, if no embryo arrives, clearing it away.
In this lesson you will describe what testosterone and oestrogen do at puberty, follow the menstrual cycle as changes in the ovaries and the uterus lining, and (for Extended) name where oestrogen and progesterone are made and explain how FSH, LH, oestrogen and progesterone control the cycle and early pregnancy.
Objectives
- Describe the roles of testosterone and oestrogen in the development and regulation of secondary sexual characteristics during puberty
- Describe the menstrual cycle in terms of changes in the ovaries and in the lining of the uterus
- [Supplement] Describe the sites of production of oestrogen and progesterone in the menstrual cycle and in pregnancy
- [Supplement] Explain the role of hormones in controlling the menstrual cycle and pregnancy, limited to FSH, LH, progesterone and oestrogen
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Sex Hormones In Humans. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- Which hormone causes the development of female secondary sexual characteristics? A. testosterone B. oestrogen C. insulin D. adrenaline Answer: B
- Ovulation in a typical 28-day menstrual cycle occurs at about: A. day 1 B. day 7 C. day 14 D. day 28 Answer: C
- During menstruation, what happens in the uterus? A. the lining thickens B. the lining breaks down and is lost C. an egg is released D. an embryo implants Answer: B
- Which hormone triggers ovulation? A. FSH B. LH C. progesterone D. testosterone Answer: B
- Progesterone in the menstrual cycle is produced by the: A. pituitary gland B. corpus luteum C. uterus lining D. testes Answer: B
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
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