Podcast
Questions and Answers
During which month of pregnancy does the development of facial features primarily commence?
During which month of pregnancy does the development of facial features primarily commence?
- Second month (correct)
- Third month
- First month
- Fourth month
At what point in the pregnancy does the fetus typically develop a sleep-wake cycle?
At what point in the pregnancy does the fetus typically develop a sleep-wake cycle?
- Early in the Second Trimester (4th month)
- End of the Third Trimester (9th month)
- End of the Second Trimester (6th month) (correct)
- Middle of the Third Trimester (7th month)
When does the formation of the amniotic sac and placenta begin during pregnancy?
When does the formation of the amniotic sac and placenta begin during pregnancy?
- Start of the second trimester
- Throughout the second trimester
- Start of the first trimester (correct)
- End of the first trimester
When do the baby's bones begin to harden?
When do the baby's bones begin to harden?
During which period of gestation is the baby considered viable, meaning it has a chance of survival outside the womb with medical intervention?
During which period of gestation is the baby considered viable, meaning it has a chance of survival outside the womb with medical intervention?
Flashcards
What is the placenta?
What is the placenta?
The structure that nourishes the developing embryo/fetus and removes waste.
What is Vernix caseosa?
What is Vernix caseosa?
A greasy deposit covering the skin of a baby at birth.
What is Lanugo?
What is Lanugo?
Fine, downy hair covering the fetus's body.
What does 'viability' mean in pregnancy?
What does 'viability' mean in pregnancy?
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What is the role of the Amniotic sac?
What is the role of the Amniotic sac?
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Study Notes
- Pregnancy is divided into three trimesters
First Trimester
1st Month
- Fertilization occurs, forming an embryo.
- The amniotic sac and placenta begin to develop.
- The neural tube starts forming.
- The heart begins to beat by the end of the month.
2nd Month
- Facial features begin to form.
- Limb buds develop into arms and legs.
- Organs like the brain, lungs, and digestive system start forming.
3rd Month
- The heartbeat often can be detected.
- Fingers, toes, and nails develop.
- Bones begin to harden.
- Reproductive organs start developing.
- The baby is about 3 inches long.
4th Month
- Baby's movement may begin but isn't noticeable.
- The face becomes more defined.
- Sucking and swallowing reflexes develop.
- Lanugo (fine hair) covers the baby's body.
Second Trimester
5th Month
- Kicks may be felt by the mother.
- Vernix caseosa (protective coating) forms on the baby's skin.
- Baby's hearing develops.
Third Trimester
6th Month
- Sleep-wake cycles develop.
- Eyelids open.
- Baby can respond to sounds.
- The baby weighs 1-1.5 pounds.
7th Month
- Eyes can open and close.
- The nervous system matures rapidly.
- The baby is now viable.
8th Month
- The baby continues to gain weight.
- Bones are fully developed but still soft because of cartilage.
- The baby starts positioning head-down for birth.
9th Month
- Baby gains half a pound a week.
- Lungs mature.
- The baby drops lower into the pelvis, preparing for delivery.
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Description
An overview of the key developmental milestones during each trimester of pregnancy. Covering organ development, physical changes, and reflexes as the baby grows. From fertilization to the later stages of pregnancy.
