Quiz on Placenta and Childbirth

The placenta is formed by the:

• Amnion and yolk sac

• Maternal tissue only

• Fetal chorion and maternal endometrium

• Fetal amnion and maternal blood

Which of the following is not a function of the placenta?

• Nutrient exchange

• Excretion of fetal waste

• Secretion of growth hormone

• Transmission of antibodies

Which hormone is secreted by the placenta to maintain pregnancy?

• LH

• FSH

• hCG

• Oxytocin

The hormone that causes powerful contractions of the uterus during childbirth is:

• Relaxin

• Estrogen

• Oxytocin

• Prolactin

Parturition is the process of:

• Fertilization

• Childbirth

• Embryo formation

• Menstruation

Which of the following hormones is responsible for the relaxation of pelvic ligaments during childbirth?

• Relaxin

• Oxytocin

• Progesterone

• Prolactin

What initiates the signals for parturition?

• The placenta

• The mother’s brain

• Fully developed fetus and placenta

• Pituitary gland

The hormone that stimulates milk production in the mother after childbirth is:

• Progesterone

• Oxytocin

• Prolactin

• Estrogen

Human chorionic gonadotropin (hCG) is secreted by:

• Anterior pituitary

• Corpus luteum

• Chorionic villi of placenta

• Hypothalamus

Which of the following statements about placenta is correct?

• It is only formed from maternal tissues

• It prevents exchange of gases

• It acts as an endocrine gland

• It has no role in immunity