In this task, you are given a sentence in the Spanish language. Your task is to translate the Spanish sentence into the English language.
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Question: El sincitio auricular está separado del ventricular por

Answer: The atrial syncytium is separated from the ventricular by


Question: Contiene un grupo imidazol la cadena lateral de

Answer: It contains an imidazole group the side chain of


Question: ¿Qué caracteriza al proceso de envejecimiento fisiológico del sistema musculoesquelético?

Answer:
What characterizes the physiological aging process of the musculoskeletal system?