Podcast
Questions and Answers
What vessel carries oxygenated blood from the placenta to the fetus?
What vessel carries oxygenated blood from the placenta to the fetus?
- Vena cava
- Umbilical vein (correct)
- Umbilical artery
- Pulmonary vein
What is the primary role of the ectoderm during embryonic development?
What is the primary role of the ectoderm during embryonic development?
- Formation of bones and muscles
- Support for metabolic processes
- Formation of the nervous system and skin (correct)
- Formation of internal organs
Which hormone is known to stimulate uterine contractions?
Which hormone is known to stimulate uterine contractions?
- Progestin
- Testosterone
- Oxytocin (correct)
- Estrogen
How does fetal hemoglobin differ from adult hemoglobin?
How does fetal hemoglobin differ from adult hemoglobin?
What effect does Thalidomide have if taken during pregnancy?
What effect does Thalidomide have if taken during pregnancy?
What does the term 'newborn' specifically refer to?
What does the term 'newborn' specifically refer to?
What is the function of the chorion during pregnancy?
What is the function of the chorion during pregnancy?
What primary structure forms the embryo during early development?
What primary structure forms the embryo during early development?
Which germ layer is responsible for forming muscles and bones?
Which germ layer is responsible for forming muscles and bones?
Which of the following statements about infants' metabolic rates is true?
Which of the following statements about infants' metabolic rates is true?
Flashcards
Umbilical Vein Function
Umbilical Vein Function
Carries oxygenated blood from the placenta to the fetus.
Inner Cell Mass Role
Inner Cell Mass Role
Forms the embryo and differentiates into three germ layers.
Fetal vs. Adult Blood Flow
Fetal vs. Adult Blood Flow
Umbilical vein has higher oxygen content compared to adult pulmonary veins.
Progesterone's Role
Progesterone's Role
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Oxytocin & Prostaglandins Effect
Oxytocin & Prostaglandins Effect
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Ectoderm's Role
Ectoderm's Role
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Mesoderm Formation
Mesoderm Formation
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Endoderm's Role
Endoderm's Role
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Fetal Hemoglobin Feature
Fetal Hemoglobin Feature
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Newborn Definition
Newborn Definition
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Study Notes
Blood Flow to Fetus
- Oxygen and nutrients transfer from mother to fetus through the placenta.
- Oxygenated blood travels to the fetus via the umbilical vein.
Inner Cell Mass Development
- The inner cell mass develops into the embryo.
- The embryo differentiates into three germ layers: ectoderm, mesoderm, and endoderm.
Fetal vs. Adult Blood Flow
- Umbilical vein carries highly oxygenated blood in the fetus.
- In adults, oxygenated blood is carried by pulmonary veins.
Uterine Contraction Hormones
- Suppressing: Progesterone
- Stimulating: Oxytocin, prostaglandins
Germ Layers' Functions
- Ectoderm: Forms nervous system, skin, and eyes.
- Mesoderm: Forms muscles, bones, circulatory system.
- Endoderm: Forms internal organs (lungs, gastrointestinal tract).
Thalidomide Effects
- Thalidomide, taken during pregnancy, drastically affects embryonic development.
- Results in severe limb deformities in newborns
Newborn vs. Infant
- Newborn: First 28 days after birth.
- Infant: First year of life after birth.
Fetal Hemoglobin
- Fetal hemoglobin has a higher affinity for oxygen.
- This allows efficient oxygen transfer from mother.
Infant Metabolism
- Infants have a higher metabolic rate and oxygen consumption.
- This supports rapid growth and development.
Chorion Function and Formation
- Function: Facilitates gas exchange and nutrient transfer between mother and fetus.
- Formation: Developed from the trophoblast layer of the blastocyst.
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