Stages of Pregnancy and Development

What is the first phase called where the cell division occurs rapidly without growth?

• Gestation phase

• Development phase

• Differentiation phase

• Cleavage phase

What structure forms around three days after fertilization and resembles a mulberry?

• Blastocyst

• Embryo

• Zygote

• Morula

Which hormone is primarily responsible for maintaining the endometrium during early pregnancy?

• Oxytocin

• Estrogen

• hCG

• Progesterone

What is the main function of the placenta?

• Initiate labor

• Produce ova

• Secrete testosterone

• Supply nutrients to the fetus

Which hormone increases flexibility in the mother's joints during pregnancy?

• hPL

• Relaxin

• Estrogen

• Progesterone

What significant change occurs in the mother's cardiovascular system during pregnancy?

• Increase in blood pressure

• Decrease in blood volume

• Decrease in heart rate

• Increase in blood volume by 40%

What triggers the start of labor in a pregnant woman?

• Increase in oxytocin

• Decrease in progesterone

• Increase in hCG

• Decrease in estrogen

During labor, what hormone is responsible for the contractions of the uterus?

• Oxytocin

• Progesterone

• hCG

• Estrogen

How does the cervix change during the dilation stage of labor?

• It expands

• It hardens

• It contracts

• It thins and dilates

What is the final stage of labor called, involving the delivery of the placenta?

• Placental stage

• Dilation stage

• Expulsion stage

• Recovery stage