Lesson 4 - Menstrual cycle

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

BIOLOGY

YEAR 2 

Menstrual cycle

Where do the ova mature

1. in the uterus
2. in the vagina
3. in the oviducts
4. in the ovaries

Where does the embryo develop during pregnancy?

1. in the uterus
2. in the vagina
3. in the oviducts
4. in the ovaries

Where does the ova mostly get fertilised?

1. in the uterus
2. in the vagina
3. in the oviducts
4. in the ovaries

Where does the penis fit in during intercourse (sex)?

1. in the uterus
2. in the vagina
3. in the oviducts
4. in the ovaries

Where are sperm cells produced?

1. in the penis
2. in the testicles
3. in the prostate
4. in the glans

Where is a man's urethra?

1. in the penis
2. in the testicles
3. in the prostate
4. in the glans

Where are liquids produced that are added to the semen?

1. in the penis
2. in the testicles
3. in the prostate
4. in the bladder

Where is the most sensitive point of the male reproductive system?

1. in the penis
2. in the testicles
3. in the prostate

objective:

• What hormones cause changes in the ovaries and uterus?
  
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• What happens in the uterus when the egg is not fertilized by a sperm cell?

Today-----The menstrual cycle

• BETWEEN 2 - 9 WEEKS (28 DAYS -4 WEEKS)
• ESTROGEN & PROGESTERON
• UTERUS LINING THICKENS
• EGG CELLS RELEASED

The lining gets thicker

The lining breaks down

An egg is released

The lining stays thick

Fertilised

Ovulation

mestruation

ovaries

vagina

period

IVF in vitro fertilisation:

• Egg cells are removed from the woman.
• Spermcells are injected under a microscope.
• The zygote is left to divide into an embryo.
• The embryo's are placed back into the uterus. 

Miscarriage / Abortion:

• With a miscarriage the pregnancy is ended because the baby dies or the woman's body can't handle the pregnancy.

• With an abortion the woman chooses to end the pregnancy. (12 weeks or 20 weeks).

Homework:

• Complete the homework .
• Make sure you have 100% on Flashcards, Learn & Match on the Glossary on Quizlet.
• Make sure you have read the Contraceptives project assignment (only read please).