Biology-B5-Puberty and Menstrual Cycle 0.0 / 5 ? BiologyVariation and reproductionGCSEAQA Created by: tonisha_Created on: 29-01-23 18:33 Puberty is where the body releases_____ _____ that causes secondary sexual characteristics e.g.? sex hormone pubic hair 1 of 47 What is the reproductive hormone for men? testosterone 2 of 47 This is released by the? testes 3 of 47 And stimulates what? sperm production 4 of 47 What is the sex hormone for women? oestrogen 5 of 47 This is produced by? ovaries 6 of 47 And causes _____ changed and starts the______ ____? causes physical changes and starts the menstrual cycle 7 of 47 What 4 hormones are involved in the menstrual cycle? FSH oestrogen LH Progesterone 8 of 47 FSH (Follicle stimulating hormone) causes what? eggs to mature 9 of 47 FSH is released from where? pituitary gland 10 of 47 It is most prominent in which stage? 1 11 of 47 Oestrogen stimulates what? the uterus lining to grow 12 of 47 It is released from where? the ovaries 13 of 47 It is most prominent in which stage? 2 14 of 47 LH (luteinising hormone) causes the? egg to be released 15 of 47 This is also known as? ovulation 16 of 47 It is released from? the pituitary gland 17 of 47 It is most prominent in stage? 3 18 of 47 Progesterone maintains? the lining of the uterus 19 of 47 It is released from the? ovaries 20 of 47 Most prominent in ? stage 4 21 of 47 MENSTRUAL CYCLE ------------------------ Stage 1 (Day 1-5) This is where ______ takes place? menstruation 22 of 47 The ______ of the _____ breaks down? lining of the uterus 23 of 47 The hormone most prominent here is? Why? FSH as it causes eggs to mature 24 of 47 Stage 2 (Day 6-13) Here the lining of the uterus? builds up again 25 of 47 It will become ____ and ____? thick and spongy 26 of 47 Here, the uterus is preparing? for a fertilised egg 27 of 47 The hormone most prominent here is? Why? oestrogen stimulates lining to grow 28 of 47 Stage 3 (Day 14) This is where what takes place? ovulation 29 of 47 And an ____ is ____? egg is released 30 of 47 The hormone most prominent here is? Why? LH causes egg to be released 31 of 47 Stage 4 (Day 15-28) This is where the lining of the uterus? is maintained 32 of 47 If an egg is fertilised? it will implant into the uterus wall 33 of 47 If not? the lining breaks down again 34 of 47 The hormone most prominent here ? Why? progesterone maintains lining of uterus 35 of 47 HOW THE HORMONES ARE LINKED --------------------------------- FSH is released by the _______ gland into the ________? pituitary gland bloodstream 36 of 47 It causes the eggs? to mature 37 of 47 At the same time, FSH also triggers the ______ to produce______? triggers the ovaries to produce oestrogen 38 of 47 Oestrogen causes? the lining of the uterus to build up 39 of 47 However oestrogen also can inhibit the pituitary gland from? releasing any more FSH 40 of 47 Then instead the pituitary gland will release ? LH 41 of 47 This causes? the egg to be releases (ovulation) 42 of 47 Once the ovary has released the egg, it will produce the hormone? progesterone 43 of 47 This has two effects Firstly it will ____ the pituitary gland releasing ___ and __? inhibit the pituitary gland releasing FSH and LH 44 of 47 This prevents any more? eggs being matured or released 45 of 47 Progesterone maintains lining until? a fertilised egg implants 46 of 47 If not? progesterone level drops 47 of 47
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