4,6 Pregnancy

Question 1

pregnancy

Answer 1

the period of development from zygote to birth

Question 2

cleavage

Answer 2

a number of cell divisions during which a zygote grows into a tiny hollow ball of cells

Question 3

embryo

Answer 3

a dividing zygote

Question 4

implantation

Answer 4

the process of the embryo attaching to / implanting into the endometrium

Question 5

umbilical cord

Answer 5

the connection between the embryo and the placenta

Question 6

placenta

Answer 6

organ that provides nutrients and oxygen and removes waste through the umbilical cord

Question 7

chorion

Answer 7

thin outer membrane that forms a sac around the embryo

Question 8

amnion

Answer 8

the inner membrane that forms a sac around the embryo

Question 9

amniotic sac

Answer 9

two layered sac filled with fluid that protects the embryo

Question 10

amniotic fluid

Answer 10

fluid in which the embryo floats, it acts as a cushion and stores some nutrients and waste

Question 11

foetus

Answer 11

after two months in the pregnancy the embryo is called a foetus

Question 12

ultrasound

Answer 12

medical procedure that uses sound waves, used to diagnose possible problems in a growing foetus

Question 13

amniocentesis

Answer 13

medical procedure in which amniotic fluid is removed with a needle to study the heriditary information of the foetus