Childbirth Educator Anatomy and Physiology of Pregnancy 3

Question 1

What is the term for the position in which the largest diameter of the fetal head has passed through the pelvic inlet?

Accepted Answer

Engagement

Answer

Engagement occurs when the largest part of the fetal head (biparietal diameter) passes through the pelvic inlet, typically occurring in the last few weeks of pregnancy in first-time mothers.

Question 2

What is the name of the dark pigmented line that often appears running vertically along the abdomen during pregnancy?

Accepted Answer

Linea nigra

Answer

The linea nigra is a dark vertical line that appears on the abdomen due to increased melanocyte-stimulating hormone activity during pregnancy.

Question 3

Supine hypotensive syndrome in late pregnancy occurs because the gravid uterus compresses which vessel?

Accepted Answer

Inferior vena cava

Answer

When a pregnant woman lies flat on her back, the heavy uterus can compress the inferior vena cava, reducing venous return to the heart and causing a drop in blood pressure.

Question 4

Which of the following correctly describes the 'station' of fetal presentation during labor?

Accepted Answer

The position of the fetal head relative to the ischial spines

Answer

Station measures the descent of the presenting part relative to the maternal ischial spines, with 0 station at the spines, negative above, and positive below.

Question 5

The process by which the fetal head rotates from a transverse position to an anteroposterior position as it descends through the pelvis is called:

Accepted Answer

Internal rotation

Answer

Internal rotation is the cardinal movement of labor in which the fetal head rotates to align the longest diameter of the head with the longest diameter of the pelvic outlet.

Childbirth Educator Practice Test

Childbirth Educator Practice Test

Childbirth Educator Anatomy and Physiology of Pregnancy 3