is a specific kind of: fascicle, fasciculus, fiber bundle, fibre bundle.

is a broader term that covers: efferent, efferent nerve, motor nerve | afferent, afferent nerve, sensory nerve | cranial nerve | depressor, depressor nerve | musculospiral nerve, nervus radialis, radial nerve | splanchnic nerve | nervus ischiadicus, sciatic nerve | nervus saphenus, saphenous nerve | cubital nerve, nervus ulnaris, ulnar nerve | nervus spinalis, spinal nerve.

has as a part: radicle | nerve fiber, nerve fibre | synapse.

derivation: nervous, neural.