Podcast
Questions and Answers
Which type of twins arise from 1 fertilized egg that splits in early pregnancy?
Which type of twins arise from 1 fertilized egg that splits in early pregnancy?
- Dizygotic twins
- Monozygotic twins (correct)
- Identical twins
- Fraternal twins
What determines chorionicity and amnionicity in monozygotic twins?
What determines chorionicity and amnionicity in monozygotic twins?
- The number of eggs fertilized
- The number of placentas
- The timing of splitting (correct)
- The number of amniotic sacs
Which condition occurs in monochorionic twin gestations?
Which condition occurs in monochorionic twin gestations?
- Fraternal twins
- Twin-Twin Transfusion Syndrome (TTTS) (correct)
- Monozygotic twins
- Dizygotic twins
Which structure is derived from the ectoderm in the pharyngeal apparatus?
Which structure is derived from the ectoderm in the pharyngeal apparatus?
What is the consequence of the failure of the urachus to involute?
What is the consequence of the failure of the urachus to involute?
Which structure is associated with the development of the middle ear cavity and eustachian tube?
Which structure is associated with the development of the middle ear cavity and eustachian tube?
What is the consequence of the partial failure of the vitelline duct to obliterate?
What is the consequence of the partial failure of the vitelline duct to obliterate?
Which structure is formed by the obliterated urachus after birth?
Which structure is formed by the obliterated urachus after birth?
What is the consequence of the failure of the vitelline duct to obliterate?
What is the consequence of the failure of the vitelline duct to obliterate?
Which structure is associated with a persistent cervical sinus and presents as a lateral neck mass anterior to the sternocleidomastoid muscle?
Which structure is associated with a persistent cervical sinus and presents as a lateral neck mass anterior to the sternocleidomastoid muscle?
Which structure contributes to the development of the thymus and the inferior parathyroids?
Which structure contributes to the development of the thymus and the inferior parathyroids?
What is the consequence of the partial failure of the urachus to involute?
What is the consequence of the partial failure of the urachus to involute?
Which structure is derived from the endoderm in the pharyngeal apparatus?
Which structure is derived from the endoderm in the pharyngeal apparatus?
What is the consequence of the total failure of the vitelline duct to obliterate?
What is the consequence of the total failure of the vitelline duct to obliterate?
Which structure gives rise to the epithelial lining of the palatine tonsil?
Which structure gives rise to the epithelial lining of the palatine tonsil?
Which structure is an outpouching of the ileum and may contain heterotopic gastric and/or pancreatic tissue?
Which structure is an outpouching of the ileum and may contain heterotopic gastric and/or pancreatic tissue?
Which structure is derived from the mesoderm and neural crest in the pharyngeal apparatus?
Which structure is derived from the mesoderm and neural crest in the pharyngeal apparatus?
Which type of twins always result in 2 zygotes?
Which type of twins always result in 2 zygotes?
What determines chorionicity and amnionicity in monozygotic twins?
What determines chorionicity and amnionicity in monozygotic twins?
Which type of twins result from 1 fertilized egg that splits in early pregnancy?
Which type of twins result from 1 fertilized egg that splits in early pregnancy?
Which condition occurs in monochorionic twin gestations?
Which condition occurs in monochorionic twin gestations?
What is the consequence of the failure of the urachus to involute?
What is the consequence of the failure of the urachus to involute?
Which vessels return deoxygenated blood from the fetal internal iliac arteries to the placenta?
Which vessels return deoxygenated blood from the fetal internal iliac arteries to the placenta?
Which vessels supply oxygenated blood from the placenta to the fetus?
Which vessels supply oxygenated blood from the placenta to the fetus?
What is a single umbilical artery (2-vessel cord) associated with?
What is a single umbilical artery (2-vessel cord) associated with?
What structure forms from the allantois?
What structure forms from the allantois?
What is the consequence of the partial failure of the vitelline duct to obliterate?
What is the consequence of the partial failure of the vitelline duct to obliterate?
Dizygotic twins always result in 2 zygotes.
Dizygotic twins always result in 2 zygotes.
Monozygotic twins arise from 2 fertilized eggs.
Monozygotic twins arise from 2 fertilized eggs.
Monozygotic twins can have separate amniotic sacs.
Monozygotic twins can have separate amniotic sacs.
Monozygotic twins can have separate placentas.
Monozygotic twins can have separate placentas.
Monozygotic twins can be conjoined.
Monozygotic twins can be conjoined.
Twin-Twin Transfusion Syndrome occurs in monozygotic twin gestations.
Twin-Twin Transfusion Syndrome occurs in monozygotic twin gestations.
TTTS is caused by abnormal connections between blood vessels in the placenta.
TTTS is caused by abnormal connections between blood vessels in the placenta.
The donor twin in TTTS experiences hypervolemia.
The donor twin in TTTS experiences hypervolemia.
A single umbilical artery is associated with congenital and chromosomal anomalies.
A single umbilical artery is associated with congenital and chromosomal anomalies.
The umbilical arteries and vein are derived from the allantois.
The umbilical arteries and vein are derived from the allantois.
True or false: The urachus is a duct between the fetal bladder and umbilicus.
True or false: The urachus is a duct between the fetal bladder and umbilicus.
True or false: The obliterated urachus is represented by the median umbilical ligament.
True or false: The obliterated urachus is represented by the median umbilical ligament.
True or false: A patent urachus can result in urine discharge from the umbilicus.
True or false: A patent urachus can result in urine discharge from the umbilicus.
True or false: A urachal cyst is a fluid-filled cavity lined with uroepithelium between the umbilicus and bladder.
True or false: A urachal cyst is a fluid-filled cavity lined with uroepithelium between the umbilicus and bladder.
True or false: A vesicourachal diverticulum is an outpouching of the bladder.
True or false: A vesicourachal diverticulum is an outpouching of the bladder.
True or false: The vitelline duct connects the yolk sac to the midgut lumen during fetal development.
True or false: The vitelline duct connects the yolk sac to the midgut lumen during fetal development.
True or false: A patent vitelline duct can result in meconium discharge from the umbilicus.
True or false: A patent vitelline duct can result in meconium discharge from the umbilicus.
True or false: A vitelline duct cyst can lead to volvulus, which can cause complications.
True or false: A vitelline duct cyst can lead to volvulus, which can cause complications.
True or false: A Meckel diverticulum is an outpouching of the ileum.
True or false: A Meckel diverticulum is an outpouching of the ileum.
True or false: The pharyngeal apparatus is composed of pharyngeal clefts, arches, and pouches.
True or false: The pharyngeal apparatus is composed of pharyngeal clefts, arches, and pouches.
Dizygotic twins always result in 2 zygotes.
Dizygotic twins always result in 2 zygotes.
Monozygotic twins can be conjoined.
Monozygotic twins can be conjoined.
TTTS occurs in monochorionic twin gestations.
TTTS occurs in monochorionic twin gestations.
A single umbilical artery (2-vessel cord) is associated with congenital and chromosomal anomalies.
A single umbilical artery (2-vessel cord) is associated with congenital and chromosomal anomalies.
The umbilical arteries and vein are derived from the allantois.
The umbilical arteries and vein are derived from the allantois.
The allantois forms from the yolk sac.
The allantois forms from the yolk sac.
The vitelline duct connects the yolk sac to the midgut lumen during fetal development.
The vitelline duct connects the yolk sac to the midgut lumen during fetal development.
A patent vitelline duct can result in meconium discharge from the umbilicus.
A patent vitelline duct can result in meconium discharge from the umbilicus.
A vitelline duct cyst can lead to volvulus, which can cause complications.
A vitelline duct cyst can lead to volvulus, which can cause complications.
A urachal cyst is a fluid-filled cavity lined with uroepithelium between the umbilicus and bladder.
A urachal cyst is a fluid-filled cavity lined with uroepithelium between the umbilicus and bladder.
The urachus is a duct between the fetal bladder and umbilicus.
The urachus is a duct between the fetal bladder and umbilicus.
The obliterated urachus is represented by the median umbilical ligament.
The obliterated urachus is represented by the median umbilical ligament.
A patent urachus can result in urine discharge from the umbilicus.
A patent urachus can result in urine discharge from the umbilicus.
A vesicourachal diverticulum is an outpouching of the bladder.
A vesicourachal diverticulum is an outpouching of the bladder.
The vitelline duct connects the yolk sac to the midgut lumen during fetal development.
The vitelline duct connects the yolk sac to the midgut lumen during fetal development.
A patent vitelline duct can result in meconium discharge from the umbilicus.
A patent vitelline duct can result in meconium discharge from the umbilicus.
A vitelline duct cyst can lead to volvulus, which can cause complications.
A vitelline duct cyst can lead to volvulus, which can cause complications.
A Meckel diverticulum is an outpouching of the ileum.
A Meckel diverticulum is an outpouching of the ileum.
Pharyngeal clefts are derived from ectoderm.
Pharyngeal clefts are derived from ectoderm.
Pharyngeal pouches are derived from endoderm.
Pharyngeal pouches are derived from endoderm.
Which type of twins arise from 1 fertilized egg that splits in early pregnancy?
Which type of twins arise from 1 fertilized egg that splits in early pregnancy?
What is the result of splitting 8-12 days after fertilization in monozygotic twins?
What is the result of splitting 8-12 days after fertilization in monozygotic twins?
What is Twin-Twin Transfusion Syndrome (TTTS) characterized by?
What is Twin-Twin Transfusion Syndrome (TTTS) characterized by?
What does the umbilical vein supply to the fetus?
What does the umbilical vein supply to the fetus?
What is a single umbilical artery (2-vessel cord) associated with?
What is a single umbilical artery (2-vessel cord) associated with?
What structure is derived from the allantois?
What structure is derived from the allantois?
What is the function of the vitelline duct during fetal development?
What is the function of the vitelline duct during fetal development?
What is the result of splitting 4-8 days after fertilization in monozygotic twins?
What is the result of splitting 4-8 days after fertilization in monozygotic twins?
What is the result of splitting 13+ days after fertilization in monozygotic twins?
What is the result of splitting 13+ days after fertilization in monozygotic twins?
What is the result of splitting 0-4 days after fertilization in monozygotic twins?
What is the result of splitting 0-4 days after fertilization in monozygotic twins?
Which embryonic structure gives rise to the parafollicular (C) cells of the thyroid?
Which embryonic structure gives rise to the parafollicular (C) cells of the thyroid?
What is the consequence of the partial failure of the vitelline duct to obliterate?
What is the consequence of the partial failure of the vitelline duct to obliterate?
Which structure is formed by the obliterated urachus after birth?
Which structure is formed by the obliterated urachus after birth?
Which one of these is not derived from the endoderm in the pharyngeal apparatus?
Which one of these is not derived from the endoderm in the pharyngeal apparatus?
What is the consequence of the total failure of the urachus to involute?
What is the consequence of the total failure of the urachus to involute?
Which one of these is not a derivative of the pharyngeal clefts?
Which one of these is not a derivative of the pharyngeal clefts?
Which one of these is not a consequence of the failure of the vitelline duct to obliterate?
Which one of these is not a consequence of the failure of the vitelline duct to obliterate?
Which one of these is not a consequence of the failure of the urachus to involute?
Which one of these is not a consequence of the failure of the urachus to involute?
Which one of these is not a derivative of the 3rd pharyngeal pouch?
Which one of these is not a derivative of the 3rd pharyngeal pouch?
Which one of these is not derived from the mesoderm and neural crest in the pharyngeal arches?
Which one of these is not derived from the mesoderm and neural crest in the pharyngeal arches?
