Reproductive Quiz #9, Pharyngeal Cleft, Arch and Pouch Derivatives  

1. A newborn is noted to have a small opening on the lateral aspect of his neck, which occasionally leaks fluid. This congenital anomaly most likely arises from improper development or closure of which of the following pharyngeal structures? 

Question 1 of 5

2. A child presents with recurrent infections and is found to have a deficiency in T-cell function. This condition is most likely associated with an anomaly in the development of which of the following pharyngeal structures?

Question 2 of 5

3. A newborn is diagnosed with congenital hypothyroidism due to the absence of the thyroid gland in its normal location. This condition is most likely due to a developmental defect involving which of the following pharyngeal structures?

Question 3 of 5

4. During a routine examination, a patient is found to have an underdeveloped mandible and malleus malformation. These findings are indicative of a defect in the derivatives of which of the following pharyngeal structures?

Question 4 of 5

5. A patient with a history of cardiovascular anomalies is discovered to have an aberrant origin of the right subclavian artery. This vascular anomaly is most likely associated with a defect in the development of which of the following pharyngeal arch structures?

Question 5 of 5


 

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