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1. An infant is born with alveolar capillary dysplasia. Which ofthe following is an effective treatment for this condition?

   	a	Corticosteroids to improve maturation of the alveolar cells
   	b	Artificial surfactant to lubricate the alveoli
   	c	None of these interventions are an effective treatment
   	d	Supplemental oxygen delivered via ventilator to raise oxygenlevels in the alveoli

Which of the following heart malformations requires an atrialseptal defect for infant survival?

		Pulmonary stenosis
		All of these require an atrial septal defect
		Tricuspid valve atresia
		Patent ductus arteriosus

QUESTION 3

1. Which of the following structures forms an identifiablestructure in adults during normal development:

   		pharyngeal groove 1
   		pharyngeal pouch 6
   		pharyngeal groove 2
   		pharyngeal arch 5

2 points   

QUESTION 4

1. Two zygotes are present in the uterus of a mother. The zygotesfuse together, creating one embryo. The resulting childwill  _______________ .

   		be a genetic mosaic, chimera, and intersex
   		be a genetic mosaic
   		be intersex
   		be a genetic mosaic and a chimera
   		be a chimera

2 points   

QUESTION 5

1. The respiratory membrane is made from which germ layers:

   		Mesoderm
   		Endoderm and mesoderm
   		Endoderm, mesoderm, and ectoderm
   		Endoderm

2 points   

QUESTION 6

1. If the ureteric bud does not form, __________ can occur.

   		Renal agenesis
   		Renal hypoplasia
   		Renal hypertrophy
   		Renal duplication