Answer :
Final answer:
Arachnodactyly fulfills the criteria for a diagnosis of Marfan syndrome. Other major criteria include aortic root dilatation, ectopia lentis, and a family history of Marfan syndrome.
Explanation:
A diagnosis of Marfan syndrome is fulfilled by the presence of major criteria in different organ systems. Arachnodactyly, or abnormally long and slender fingers, fulfills the diagnostic criteria for Marfan syndrome. Other major criteria include aortic root dilatation, ectopia lentis, and a family history of Marfan syndrome. Arm span to height ratio > 1.05 and high-arched palate are minor criteria for the diagnosis.
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