Given a sentence in French, provide an equivalent paraphrased translation in Spanish that retains the same meaning both through the translation and the paraphrase.
Example: La saison NBA 1975 - 76 était la 30e saison de la National Basketball Association.
Example solution: La temporada 1975 - 76 de la Asociación Nacional de Baloncesto fue la temporada 30 de la NBA.
Example explanation: This is a correct and accurate translation from French to Spanish because the translated paraphrase retains the main message that between the years 1975-1976, the 30th NBA season occurred.

Problem: Une fibre de chaîne sensorielle spécialisée est un organe nucléaire contenu dans un muscle.

Solution: Una fibra de cadena sensorial especializada es un órgano nuclear contenido dentro de un músculo.