Master Mechanism of Labor with Picmonic for Nursing RN

With Picmonic, facts become pictures. We've taken what the science shows - image mnemonics work - but we've boosted the effectiveness by building and associating memorable characters, interesting audio stories, and built-in quizzing.

Mechanism of Labor

Mechanic of Labor
Picmonic
The cardinal movements that occur during the mechanism of labor describe the movement of the fetus through the birth canal. These movements consist of engagement, descent, flexion, internal rotation, extension, restitution and external rotation, and expulsion of the infant.
7 KEY FACTS
Engagement
Engagement-ring

During the few weeks before labor, the presenting part of the fetus will pass through the maternal pelvic inlet and engages in the true pelvis. This mechanism refers to engagement.

Descent
Descending

The descent of the fetus through the pelvis indicates the progressive movement of the fetal presenting part through the pelvis to prepare for birth.

Flexion
Flexing with Flexion

When descent is complete and the fetal head meets the cervix, the fetal head flexes to allow the chin to make contact with the fetal chest. This mechanism allows a smaller diameter of the head to move through the outlet.

Internal Rotation
Internally Rotating-in

In order for the fetus to be able to exit the pelvic outlet, the fetal face rotates posteriorly so that the occiput faces anterior.

Extension
Extending with Extension

As the fetus moves through the vaginal opening for birth, the head extends pushing the occiput out first followed by the face and chin.

External Rotation (Restitution)
Externally Rotating-out

Once the head is outside of the vaginal opening, the fetus rotates to realign the head with the shoulders and back allowing for the shoulders to move out of the vaginal opening.

Expulsion of Infant
Explosion of Infant

After the head and shoulders have exited the vaginal opening, the fetal head and shoulders move upward allowing for the rest of the baby to be born.

Unlock all 7 facts & definitions with Picmonic Free!

JOIN FREE

Take the Mechanism of Labor Quiz

Picmonic's rapid review multiple-choice quiz allows you to assess your knowledge.

START QUIZ NOW

It's worth every penny

Our Story Mnemonics Increase Mastery and Retention

Memorize facts with phonetic mnemonics

Unforgettable characters with concise but impactful videos (2-4 min each)

Ace Your Nursing (RN) Classes & Exams with Picmonic:

Over 850,000 students use Picmonic’s picture mnemonics to improve knowledge, retention, and exam performance.

Choose the #1 Nursing (RN) student study app.

Picmonic for Nursing (RN) covers information that is relevant to your entire Nursing (RN) education. Whether you’re studying for your classes or getting ready to conquer your NCLEX®-RN, Hesi, ATI, TEAS test, Kaplan exams, we’re here to help.

Works better than traditional Nursing (RN) flashcards.

Research shows that students who use Picmonic see a 331% improvement in memory retention and a 50% improvement in test scores.