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Channel and carrier proteins

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What makes myelin in the CNS and PNS?

CNS: oligodendrocytes make the myelin, they cooperate in the formation of a myelin sheath along the axon, this is the process of myelination. Each oligodendrocyte produces segments of several axons.PNS: schwann cells make the myelin, each schwann cell can myelinate one segment of a single axon and they work together ot form the myelin sheath.


Are muscles and glands myelinated?

Muscles and glands are not myelinated. It is the axon of a neuron that is myelinated. The myelin forms a layer called myelin sheath that makes the nervous system function properly.


The material surrounding the axon that increases the speed of the nerve impulse is?

The material surrounding the axon that increases the speed of the nerve impulse is the myelin sheath. It is made of fatty substances and acts as an insulator, allowing for faster conduction of the electrical signal along the axon. Nodes of Ranvier are the gaps in the myelin sheath where the signal jumps between to speed up transmission.


What protects the myelin sheath?

The myelin sheath, an insulating layer around the axon of a neuron, is mainly made up of H20 (40%); the dry mass of myelin is made up of mostly lipids (70 - 80%), and the rest is proteins (30 - 15%). There are three types of myelin protein, one of which is myelin basic protein. The lipid that mostly makes up myelin is called galactocerebroside.


Why is a high fever dangerous?

The cells in your brain are called neurons. The White Matter of your brain is composed of neurons that have a myelin sheath on them (this makes the impulse travel faster). The myelin sheath is made up of lipids (fats). Fat melts when it gets hot. So, essentially, if your brain gets too hot, it will melt. That would be bad.


Why is the myelin sheath so important to the nervous system?

Myelin is a fatty substance that insulates and protects nerve cells and allows them to transmit electrical signals quickly.


What part of the neuron is sometimes myelinated?

Myelin Sheath is basically fat-containing cells that insulates the neurons from any electric impulses that travel along the nerves and makes sure that the impulses do not jump between close nerves


What makes up the outer covering of an axon?

The outer covering of an axon is primarily composed of a myelin sheath, which is formed by glial cells. In the peripheral nervous system, Schwann cells create this myelin, while in the central nervous system, oligodendrocytes perform the same function. The myelin sheath is segmented by nodes of Ranvier, which facilitate faster signal transmission through saltatory conduction. Additionally, the axon is surrounded by a layer called the endoneurium, which provides structural support.


What is a neuron identify the parts of the neuron and their functions?

there's the axon (the nerve) the electrical impulse goes down that and covering the axon is the myelin sheath, otherwise known as a fatty sheath which insulates and helps make the electrical impulse go faster. In between each myelin sheath there are synapses (gaps between each one) and the impulse has to cross the gap so neurotransmitters are released which bind to receptors on the other side creating another electrical impulse which makes it travel even faster.


How does the presence of myelin help axons work?

Myelin makes it easier for acons to transmit signals- it speeds there work.


What do you call poor conductors?

Poor conductors of electricity are often referred to as insulators. Insulators have high resistance to the flow of electricity due to their molecular structure, which makes them unable to conduct electricity efficiently. Examples of insulators include rubber, plastic, and glass.


What colour is the white matter?

white... what makes it white? Myelin in the myelinated axon.