Myelin Sheath
Found in 14 chapters across our textbook library
Top explanations for Myelin Sheath
Fundamentals of the Nervous System and Nervous Tissue — Human Anatomy and Physiology▶ 11:19They line up along the thicker nerve fibers in the CNS and wrap their processes tightly around themAnd in doing so, they produce that insulating covering called a myelin sheath, which is super important for speeding up signalsWe'll definitely come back to thatStructure and Function of the Neurologic System — Pathophysiology: The Biologic Basis for Disease in Adults and Children▶ 16:05But the most important feature of this axon is what is wrapped around itThe myelin sheathIf there is one structural component that dictates the speed and efficiency of the human nervous system, it is myelinNerve Tissue & Neural Organization — Histology: A Text and Atlas▶ 14:13The axon starts at the hillock, but the most functionally important part is right at the beginning, the axon initial segment, or…This short region, just before the myelin sheath starts, is the true nerve impulse generatorIt is absolutely loaded with the voltage -gated channels needed to kick off an action potential