Reproductive Quiz #2, Embryological Derivatives  

1. A newborn is diagnosed with DiGeorge syndrome, a disorder characterized by the absence of the thymus and parathyroid glands. This syndrome is due to aberrations in the development of which of the following embryonic structures? 

Question 1 of 5

2. During a routine prenatal visit, an ultrasound reveals that the fetus has a single umbilical artery. This finding suggests a risk for congenital anomalies. The umbilical arteries are derived from which of the following embryonic structures? 

Question 2 of 5

3. A child presents with a cyst in the midline of his neck, which moves upward when the tongue is protruded. This cyst is most likely derived from remnants of which of the following embryological structures? 

Question 3 of 5

4. An infant is born with exstrophy of the bladder, a condition where the bladder is exposed outside the body. This condition is associated with improper development of which of the following embryonic structures?

Question 4 of 5

5. A neonate presents with a high-output cardiac failure and a loud continuous murmur on auscultation. Imaging studies reveal an abnormal connection between the pulmonary artery and the aorta. This congenital condition is known as patent ductus arteriosus (PDA). The ductus arteriosus is a remnant of which embryonic structure? 

Question 5 of 5


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