HHD Recap

Select the incorrect statement about sperm and ova.

• Ovum means 'many eggs'

• Sperm production begins during puberty

• Ova mature during puberty.

• Ova form in the ovaries before a female is born.

Select the incorrect statement about fertilisation.

• Two half cells join to make a zygote.

• Fertilisation is different from conception.

• Fertilisation usually occurs in the fallopian tubes.

• If more than one sperm enters an ovum, the zygote would not survive.

What characterises the foetal stage of prenatal development?

• Cell differentiation

• Rapid growth

• Implantation

• All of the above

The foetal stage begins at the

• 9th week and continues until birth.

• 10th week and continues until birth.

• 8th week and continues until birth.

• 7th week and continues until birth.

Outline one main roles the placenta plays to ensure the foetus continues to grow and develop.

The________stage is where teratogens have the greatest danger that can cause structural damage.

___________are agents that can potentially cause birth defects or negatively alter cognitive and behavioral outcomes of your baby.

At 29-33 weeks the following occurs...

• Eyelids are fused over the eyes

• Eyebrows and eyelashes grow

• The foetus is around 14cm

• Teeth begin to form in the gums

At 34-38 weeks the following occurs

• Foetus assumes the 'head down' position in preparation for birth

• The lunges develop at a rapid rate

• The foetus is around 50 cm in length

• The tongue develops its taste buds

________ is an organ attached to the lining of the uterus during pregnancy.