The human menstrual cycle | Science | Quizalize & Oak National Academy

Starter quiz

Which part of the female reproductive system releases an egg?
- 'Ovaries' ✓
How many egg cells does an ovary release at any one time?
- 2
- 28
- 10
- 1 ✓
Which part of the female reproductive system does the embryo develop in?
- vagina
- uterus ✓
- fallopian tubes
- cervix
True or false? The ovaries produce hormones.
- True ✓
- False
Where does fertilisation take place?
- 'Fallopian tubes' ✓
Match the part of the reproductive system to its role.
- vagina
  
  ⇔
  
  Used in sexual reproduction and for birthing a baby. ✓
- ovary
  
  ⇔
  
  Releases egg cells and hormones. ✓
- uterus
  
  ⇔
  
  Where a developing foetus grows. ✓
- fallopian tube
  
  ⇔
  
  Moves the egg cells from the ovaries to the uterus. ✓

How long is a typical human female menstrual cycle?
- 60 days
- 28 days ✓
- 1 day
- 15 days
What are hormones?
- cells
- organs
- chemicals ✓
- gametes
True or false? After the menopause the menstrual cycle starts.
- True
- False ✓
What word describes the release of an egg each month?
- 'Ovulation' ✓
Who is correct?
- Alex: A female menstruates because the lining of the uterus breaks down. ✓
- Lucas: The length of the menstrual cycle is always 28 days.
- Izzy: Females lose a lot of blood during menstruation.
- Sam: Menstruation is always painful.
Put these statements in order to describe the menstrual cycle.
- 1
  
  ⇔
  
  The uterus lining breaks down and leaves the body.
- 2
  
  ⇔
  
  The uterus lining reforms and thickens.
- 3
  
  ⇔
  
  Ovulation occurs as an egg is released from the ovary.
- 4
  
  ⇔
  
  The uterus lining is maintained to prepare for a fertilised egg.

Adult human females have a menstrual cycle that prepares them for sexual reproduction
On average the menstrual cycle is 28 days
In each cycle, an egg cell is released from an ovary (ovulation)
After ovulation, the uterus lining breaks down and leaves the body (menstruation)

The menstrual cycle is not linked to reproduction

Descriptions of egg release and function of the uterus lining in regard to the reproduction detailed on the menstrual cycle diagrams

Hormones - Hormones are chemical messengers that control organs and processes in the body
Ovulation - Ovulation is the release of an egg cell from an ovary
Ovaries - The ovaries (singular ovary) contain egg cells and release female sex hormones
Fallopian tubes - Egg cells are passed along the fallopian tubes from the ovary to the uterus
Menstruation - Menstruation is when the lining of the uterus breaks down and is passed out through the vagina