21. Immune cells target myelin, the cushioning sheath around nerve fibers . 22. If you think of nerve fibers in the olfactory system as being like trains, 23. Amplitude is adjusted to achieve superficial cutaneous nerve fiber activation. 24. :: : : The technology to interface nerve fibers to electronics is extraordinarily difficult. 25. Neurolemma serves a protective function for peripheral nerve fibers . 26. In MS, the insulating sheath of myelin that surrounds nerve fibers dies, disrupting nerve transmission. 27. The disease occurs when the immune system attacks and destroys nerve fiber insulation, called myelin. 28. ALD is caused by a genetic defect that destroys the sheath that covers nerve fibers . 29. Some of its nerve fibers are so big they were initially mistaken for blood vessels. 30. ACh is secreted by parasympathetic nerve fibers of both the short and long reflex pathways.
