1. Reproductive System

2. Reproductive System All organisms reproduce
If they reproduce sexually, they create egg and sperm cells
The function of an organism’s reproductive system to produce more organisms like itself

3. Reproductive System
Males and females produce different types of reproductive cells
Male cells are called sperm
Female cells are called eggs

4. Reproductive System
The reproductive system is controlled by the release of hormones from the endocrine system
These hormones start the process of sexual development and maintain secondary sex characteristics

5. Reproductive System
Each sex cell only carries half of the number of chromosome
Offspring will be a random mixture of the parents’ genes from these two cells
Different combinations of dominant and recessive genes in each sibling will cause them to be different

6. Reproductive System
Hormones are chemicals made in the body to cause the body to change
The primary female hormones made in the ovaries are estrogen and progesterone
The primary male hormone made in the testes is testosterone
This will blow your mind…both males and females have both estrogens and testosterones!

7. Fertilization Fertilization occurs when the egg and one sperm join
Occurs in the Fallopian tubes
Fertilized egg will soon begin to multiply into a small ball of cells
Fertilized egg will remain in uterus for about 40 weeks

8. Embryo First 9 weeks of pregnancy Grows to the size of an adult thumb
Most major body parts have formed

9. Fetus 9 weeks to 40 weeks of pregnancy
Floats in an amniotic sac of fluid
Receives nutrition from umbilical cord attached to placenta
Body parts need time to finish developing

10. Ultrasounds

11. Ultrasounds

12. Ultrasounds https://www.youtube.com/watch?v=ZxCISCqkZ6s