Given the task definition and input, reply with output. Given a sentence in Japanese, provide an equivalent paraphrased translation in German that retains the same meaning both through the translation and the paraphrase.

特殊な感覚鎖繊維は筋肉に含まれる核器官です。

Eine spezialisierte sensorische Kettenfaser ist ein in einem Muskel enthaltenes Kernorgan.