Developmental Basis of Congenital Anomalies — Flashcards

Flashcard 1: The Eustachian tube in children is shorter (13-18mm), _____ and more horizontal.

Answer: wider (narrower/wider)

Flashcard 2: Elbow joint centres fuse by the age of _____ years

Answer: 16

Flashcard 3: Which 2 processes fail to fuse in oblique facial cleft?_____

Answer: lateral nasal processes and maxillary process

Flashcard 4: All primary ossification centres (except the pisiform) appear in the body by the age of _____ years

Answer: 5 years

Extra: Ossification centers for all bones (except the pisiform) appear by the 5th year of life. Note: The pisiform is the last carpal bone to ossify, appearing between ages 9-12.

Flashcard 5: The spleen grows in the _____ mesogastrium

Answer: dorsal

Flashcard 6: The secondary ossification center of the head of tibia appears at _____

Answer: birth

Flashcard 7: Two aspects of tooth development have been used in the estimation of dental age are: their _____ and mineralization

Answer: emergence

Flashcard 8: Two types of bronchogenic cysts can be either _____ (10-15%) or mediastinal (65-90%)

Answer: pulmonary

Flashcard 9: Sutures ossify on the _____ surface before they ossify on the ectocranial surface (endo/ectocranial)

Answer: endocranial

Flashcard 10: The earliest tooth to erupt in secondary (permanent) dentition is a _____ molar.

Answer: first