Doula Certification Anatomy and Physiology of Birth 1 — Questions and Answers
Question 1: What are the three stages of labor?
- Latent, active, transition
- First stage (dilation), second stage (birth), third stage (placenta) (Correct answer)
- Early, middle, late
- Cervical, fetal, placental
Correct answer: First stage (dilation), second stage (birth), third stage (placenta)
Labor is divided into the first stage (cervical dilation), second stage (pushing and birth), and third stage (placental delivery).
Question 2: What measurement indicates the cervix is fully dilated?
- 5 centimeters
- 8 centimeters
- 10 centimeters (Correct answer)
- 12 centimeters
Correct answer: 10 centimeters
Full cervical dilation is 10 centimeters, which allows the baby's head to pass through the cervical opening into the vaginal canal.
Question 3: What hormone is primarily responsible for triggering uterine contractions during labor?
- Estrogen
- Progesterone
- Oxytocin (Correct answer)
- Cortisol
Correct answer: Oxytocin
Oxytocin, released by the posterior pituitary gland, stimulates uterine contractions and plays a key role in labor progression.
Question 4: What is effacement of the cervix?
- Dilation of the cervical os
- Thinning and shortening of the cervix (Correct answer)
- Descent of the fetal head
- Rupture of the membranes
Correct answer: Thinning and shortening of the cervix
Effacement is the process by which the cervix thins, shortens, and softens in preparation for and during labor.
Question 5: What is the amniotic sac?
- The placenta
- The fluid-filled membrane surrounding and protecting the fetus (Correct answer)
- The uterine lining
- The umbilical cord covering
Correct answer: The fluid-filled membrane surrounding and protecting the fetus
The amniotic sac is a fluid-filled membrane that surrounds and cushions the fetus throughout pregnancy.
Question 6: What is the placenta's primary function during pregnancy?
- Produce the fetal heartbeat
- Exchange nutrients, oxygen, and waste between mother and fetus (Correct answer)
- Regulate fetal temperature only
- Produce amniotic fluid only
Correct answer: Exchange nutrients, oxygen, and waste between mother and fetus
The placenta serves as the exchange organ, transferring oxygen and nutrients to the fetus while removing carbon dioxide and waste products.
Doula Certification Anatomy and Physiology of Birth 1
What are the three stages of labor?