The efferent ductules form the _____, which is a comma-shaped organ adjoining each testis. Sperm _____ here as they travel to the _____ through the long (over 3x a man's height!) duct of the epididymis, a trip that takes 2 - 3 _____ .

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Anatomy refers to the internal and external structures of the body and their physical relationships, whereas physiology refers to the study of the functions of those structures.