PMC Pregnancy Body Basics 1 — Questions and Answers
Question 1: Which hormone is primarily responsible for relaxing ligaments during pregnancy?
- Estrogen
- Relaxin (Correct answer)
- Progesterone
- Oxytocin
Correct answer: Relaxin
Relaxin is a hormone primarily responsible for softening and relaxing the ligaments and joints, particularly in the pelvis, during pregnancy. This physiological change increases the flexibility of the birth canal, preparing the mother's body for childbirth. It helps accommodate the growing fetus and facilitates delivery.
Question 2: What is a common postural change during pregnancy due to the weight of the uterus?
- Kyphosis
- Lordosis (Correct answer)
- Scoliosis
- Flat back
Correct answer: Lordosis
Lordosis, specifically an increased lumbar lordosis, is a common postural change during pregnancy. The growing uterus shifts the center of gravity forward, causing the pregnant person to compensate by arching their lower back. This increased inward curvature of the lower spine helps maintain balance but can also contribute to back pain.
Question 3: Which trimester is typically considered safest to start prenatal massage?
- First trimester
- Second trimester (Correct answer)
- Third trimester
- All trimesters equally
Correct answer: Second trimester
The second trimester (weeks 13-27) is generally considered the safest and most comfortable time to begin prenatal massage. By this stage, the risk of miscarriage has significantly decreased, and many early pregnancy symptoms like nausea and extreme fatigue have often subsided. This allows the pregnant client to fully relax and enjoy the benefits of the massage.
Question 4: Why should deep abdominal massage be avoided during pregnancy?
- It increases appetite
- It causes bloating
- It may stimulate contractions (Correct answer)
- It causes skin irritation
Correct answer: It may stimulate contractions
Deep abdominal massage should be strictly avoided during pregnancy because it can potentially stimulate uterine contractions. The uterus is a sensitive organ, and strong pressure or manipulation in this area could pose a risk to the pregnancy, especially in early or late stages. Gentle, superficial strokes are generally acceptable, but deep work is contraindicated.
Question 5: What is the function of the hormone progesterone during pregnancy?
- Contracts the uterus
- Stimulates milk production
- Supports uterine lining and relaxes muscles (Correct answer)
- Increases appetite
Correct answer: Supports uterine lining and relaxes muscles
Progesterone is a crucial hormone during pregnancy, primarily responsible for maintaining the uterine lining to support the developing fetus. It also helps to relax the smooth muscles of the uterus, preventing premature contractions, and plays a role in breast development for lactation. Its relaxing effect on muscles is vital for a healthy pregnancy.
Question 6: Which vein can become compressed when a pregnant woman lies flat on her back?
- Jugular vein
- Subclavian vein
- Inferior vena cava (Correct answer)
- Pulmonary vein
Correct answer: Inferior vena cava
When a pregnant woman lies flat on her back (supine position), the weight of the growing uterus can compress the inferior vena cava. This major vein returns deoxygenated blood from the lower body to the heart, and its compression can reduce blood flow to the heart and placenta, potentially causing dizziness, nausea, or affecting fetal circulation. Therefore, supine positioning is generally avoided after the first trimester.
Question 7: What is the safest position for a pregnant woman receiving a massage in the third trimester?
- Supine
- Prone with a cushion
- Side-lying (Correct answer)
- Standing
Correct answer: Side-lying
The side-lying position is considered the safest and most comfortable for pregnant women receiving a massage, especially in the third trimester. This position prevents compression of the inferior vena cava, ensuring proper blood flow to the mother and baby. It also allows for optimal support of the abdomen and back, enhancing comfort during the massage.
Question 8: Why is hydration especially important during pregnancy?
- Reduces appetite
- Increases contractions
- Supports blood volume and amniotic fluid (Correct answer)
- Stimulates milk production
Correct answer: Supports blood volume and amniotic fluid
Hydration is exceptionally important during pregnancy because the mother's blood volume significantly increases by 30-50% to support both her and the growing fetus. Adequate fluid intake is also essential for forming amniotic fluid, which cushions and protects the baby, and for preventing common pregnancy discomforts like constipation and fatigue. Proper hydration supports overall maternal and fetal health.
Question 9: Which body system undergoes the most volume increase during pregnancy?
- Respiratory system
- Digestive system
- Circulatory system (Correct answer)
- Endocrine system
Correct answer: Circulatory system
During pregnancy, the mother's circulatory system undergoes the most significant volume increase, with blood volume expanding by 30-50%. This substantial increase is necessary to meet the metabolic demands of the growing fetus and placenta, and to prepare for potential blood loss during childbirth. The heart also works harder to pump this increased volume.
PMC Pregnancy Body Basics 1
Which hormone is primarily responsible for relaxing ligaments during pregnancy?