Childbirth Educator Anatomy and Physiology of Pregnancy 2

Question 1

What is the name of the specialized circulatory structure in the fetus that allows blood to bypass the non-functioning lungs?

Accepted Answer

All of the above

Answer

Ductus arteriosus

Answer

Foramen ovale

Answer

Ductus venosus

Question 2

During pregnancy, which change to the maternal respiratory system helps compensate for increased oxygen demand?

Accepted Answer

Increased tidal volume with mild hyperventilation

Answer

Increased respiratory rate only

Answer

Decreased tidal volume

Answer

Decreased diaphragmatic excursion

Question 3

The fundal height in centimeters roughly corresponds to which measurement after 20 weeks?

Accepted Answer

Weeks of gestation

Answer

Weeks of gestation minus 2

Answer

Weeks of gestation plus 4

Answer

Biparietal diameter in millimeters

Question 4

Which presentation occurs when the baby's buttocks or feet are positioned toward the cervix rather than the head?

Accepted Answer

Breech presentation

Answer

Transverse lie

Answer

Cephalic presentation

Answer

Oblique lie

Question 5

What anatomical change causes many pregnant women to experience shortness of breath in the third trimester?

Accepted Answer

Decreased lung capacity from uterine pressure on the diaphragm

Answer

Increased blood viscosity

Answer

Reduced hemoglobin levels

Answer

Compression of the trachea

Question 6

The plug of mucus that seals the cervical os during pregnancy is called:

Accepted Answer

Mucous plug

Answer

Bloody show

Answer

Lochia

Answer

Cervical cap

Question 7

Which fetal organ is responsible for gas exchange, nutrient transfer, and hormone production during pregnancy?

Accepted Answer

Placenta

Answer

Umbilical cord

Answer

Amniotic sac

Answer

Chorion