Reproductive Hormones - Puberty & Menstrual Cycle
This lesson covers:
- What 'puberty' is and which hormones are responsible for it
- The stages and hormones involved in the menstrual cycle
is the period in which adolescents start to develop secondary sexual characteristics.
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The term 'secondary sexual characteristics' refers to the bodily changes that take place during puberty.
Which of the following are secondary sexual characteristics?
(Select all that apply)
Less body hair
More muscle mass
Deepening voice
Increase in height
Breast development
Darker skin
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Which organ is testosterone released from?
Adrenal gland
Ovaries
Pituitary gland
Testes
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Is oestrogen the main sex hormone in males or females?
Males
Females
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Which organ is oestrogen released from?
Testes
Ovaries
Pituitary gland
Adrenal gland
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What is the structure indicated on the diagram above?
Uterus
Ovaries
Fallopian tube
Uterus lining
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What is the structure indicated on the diagram above?
Ovaries
Uterus
Fallopian tube
Uterus lining
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What is the structure indicated on the diagram above?
Uterus lining
Fallopian tubes
Ovaries
Uterus
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What is the structure indicated on the diagram above?
Uterus lining
Uterus
Fallopian tube
Ovaries
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How long does the average menstrual cycle last?
24 days
28 days
32 days
36 days
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The menstrual cycle
The menstrual cycle is a series of steps that prepares the uterus for the implantation of a fertilised egg.
If there is no fertilised egg, then the cycle repeats.
But if there is a fertilised egg, then the cycle will stop and the egg will implant into the uterus lining, where it can develop into a foetus.
What happens in stage one of the menstrual cycle?
Maintenance of uterus lining
Period of bleeding as the uterus lining breaks down
Release of the egg from the ovaries
Building up of the uterus lining
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What is the name of stage one of the menstrual cycle?
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What happens in stage two of the menstrual cycle?
Period of bleeding as the uterus lining breaks down
Maintenance of uterus lining
Release of the egg from the ovaries
Building up of the uterus lining
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What happens in stage three of the menstrual cycle?
Period of bleeding as the uterus lining breaks down
Release of the egg from the ovaries
Building up of the uterus lining
Maintenance of uterus lining
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What is the name of stage three of the menstrual cycle?
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What happens in stage four of the menstrual cycle?
Building up of the uterus lining
Release of the egg from the ovaries
Maintenance of uterus lining
Period of bleeding as the uterus lining breaks down
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What happens after stage four if there is no fertilised egg?
The cycle starts again
The lining gets thicker
The cycle stops
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If a fertilised egg implants into the uterus lining then the menstrual cycle stops and the lining is maintained.
True
False
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Which hormone stimulates the uterus lining to develop?
Luteinising hormone (LH)
Progesterone
Follicle stimulating hormone (FSH)
Oestrogen
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Which organ are both luteinising hormone and follicle stimulating hormone released from?
Ovaries
Pituitary gland
Testes
Adrenal gland
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Which hormone stimulates the egg to be released around day 14 (ovulation)?
Follicle stimulating hormone (FSH)
Luteinising hormone (LH)
Oestrogen
Progesterone
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Which hormone stimulates the egg follicle to mature?
Oestrogen
Follicle stimulating hormone (FSH)
Luteinising hormone (LH)
Progesterone
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Which hormone maintains the lining of the uterus?
Oestrogen
Luteinising hormone (LH)
Progesterone
Follicle stimulating hormone (FSH)
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