Female Hormones and Menstrual Cycle_Yr11

• Science
• Upper Secondary (Key Stage 4)
• GCSE

Which variable is the one that is changed or different for each test in an investigation?

1. independent variable
2. dependent variable
3. control variables
4. independent and control variables

Fallopian tube

Uterus

Ovary

Cervix

Vagina

4 Female hormones

FSH - made by pituitary gland

Estrogen - made by ovaries

LH - made by pituitary gland

Progesterone - made by ovaries

4 Female hormones

FSH - makes egg in ovary mature (get ready for release), stimulates ovaries to produce estrogen

Estrogen - Stops FSH being produces, causes lining of uterus to thicken

LH - triggers ovulation

Progesterone - Maintains lining of the uterus during middle phase of menstrual cycle 

FSH

Estrogen

LH

Progesterone

Put the hormones in the order that they are produced.

LH

FSH

Progesterone

Estrogen

LH stimulates ovulation releasing a mature ovum from here.

Estrogen stimulates the lining here to thicken in preparation for an embryo.

FSH stimulates an ovum inside here to mature ready to be released.

Which hormone inhibits (stops) the production and release of FSH?

1. FSH
2. Estrogen
3. LH
4. Progesterone

Which hormone is needed to prepare the uterus for an embryo?

1. FSH
2. Estrogen
3. LH
4. Progesterone

Which hormone needed to cause ovulation to take place?

1. FSH
2. Estrogen
3. LH
4. Progesterone

Menstrual cycle

• 28 days long
• day 1 to 5 is menstruation - the period
• day 6 to 21 - thickness of lining of uterus increases
• day 14 ovulation happens which means the ovum is released
• day 28 if no egg has been fertilised then the lining of the uterus starts to break down

When does ovulation happen
?

1. day 1
2. day 14
3. day 21
4. day 28

Which hormone causes ovulation?

1. FSH
2. Estrogen
3. LH
4. day 28

When is menstruation?

1. day 1 to 5
2. day 5 to 14
3. day 14
4. day 21 to 28

What hormone maintains the lining of the uterus during the middle part of the menstrual cycle?

1. FSH
2. Estrogen
3. LH
4. Progesterone