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A nerve cell with a myelin sheath.
The sheath acts as an insulator of electrical conduction which is how the nerve cell conducts action potential. It conducts faster because the insulator prevents flow of ions right beside the channels that are being activated. So it 'skips' distance.
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What is a group of neurons with little to no myelin is known as?
A group of neurons with little to no myelin is known as unmyelinated neurons. These neurons transmit signals more slowly compared to myelinated neurons, which have a protective myelin sheath covering their axons.
Are neurotransmitters found in the myelin shealth?
No, neurotransmitters are not found in the myelin sheath. The myelin sheath is a protective covering that surrounds nerve fibers, while neurotransmitters are chemical messengers that transmit signals between neurons.
Myelin is largely composed of?
Myelin is largely composed of lipids, particularly phospholipids and cholesterol. These lipids form a sheath around the axons of neurons, providing insulation and enhancing the speed at which electrical signals can travel along the neurons.
What cell main function is to provide insulation and structure for neurons?
The main function of glial cells, specifically oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system, is to provide insulation to neurons through the formation of myelin sheaths. These myelin sheaths wrap around the axons of neurons, which helps to increase the speed and efficiency of electrical signal conduction along the neuron.
State the structure of neurons which reduces leakage of impulses?
Neurons are covered by a myelin sheath, which consists of layers of fatty tissue that insulates the axon and reduces leakage of impulses. The myelin sheath is formed by specialized cells called oligodendrocytes in the central nervous system, and Schwann cells in the peripheral nervous system. This insulation allows for faster and more efficient transmission of electrical impulses along the axon.
