Placenta and fetal membranes — Flashcards

Flashcard 1: Neurulation begins in the _____ week of fetal development

Answer: third

Flashcard 2: During the pseudoglandular period of lung development, the bronchioles are surrounded by a _____ capillary network

Answer: modest

Flashcard 3: Umbilical arteries and veins are derived from the _____

Answer: allantois

Flashcard 4: Abnormal prenatal development of the acetabulum is caused by excessive _____

Answer: uterine packing (uterine constraint)

Flashcard 5: mastoid air cells

Answer: 1st pouch

Flashcard 6: Endoderm lined structures of the ear (1st pharyngeal pouch)

Answer: 1st pouch

Flashcard 7: Embryological origin of the thymus

Answer: 3rd pharyngeal pouch (ventral wing)

Extra: The 3rd pharyngeal pouch gives rise to the Thymus (ventral wing) and the Inferior Parathyroid glands (dorsal wing). Compare with the 4th pharyngeal pouch, which gives rise to the Superior Parathyroid glands.

Flashcard 8: inferior parathyroids

Answer: 3rd pouch

Flashcard 9: superior parathyroids

Answer: 4th pouch

Flashcard 10: cleft lip

Answer: failure of fusion of maxillary and medial nasal processes (primary palate)

Extra: