Mechanisms of Labor

Question 1

The mechanism by which the fetus nestles into the pelvis

Answer 1

engagment

Question 2

The normal intrauterine attitude is …

Answer 2

flexion, the fetal back is rounded, the head forward on the chest, and the arms and legs folded in against the body.

Question 3

Occurs when the presenting part of the fetus reaches the level of the ischial spine

Answer 3

Engagement

Question 4

The relationship of the fetal body parts to one another

Answer 4

Attitude

Question 5

Relationship of the spine of the fetus to the spine of the mother.

Answer 5

Lie

Question 6

Longitudinal or vertical lie

Answer 6

fetal spine is parallel to the mother’s spine

Question 7

Transverse or horizontal lie

Answer 7

fetal spine is at a right angle, perpendicular, to the mother’s spine

Question 8

the portion of the fetus that enters the pelvis first

Answer 8

presentation

Question 9

presentations

Answer 9

Cephalic, Breech, Shoulder

Question 10

Presenting Part

Answer 10

The specific fetal structure lying nearest to the cervix.

Question 11

Position

Answer 11

The relationship of the assigned area of the presenting part of landmark to the maternal pelvis

Question 12

The measurement of the progress of descent in centimeters above or below the midplane from the presenting part of the ischial spine

Answer 12

Station

Question 13

Station 0

Answer 13

At the ischial spine

Question 14

Minus Station

Answer 14

Above the ischial spine

Question 15

Plus Station

Answer 15

Below the ischial spine

Question 16

Engagement

Answer 16

When the widest diameter of the presenting part has passed the inlet; corresponds to a station

Question 17

Lightening or dropping is also known as…

Answer 17

engagement