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What cell is insulated by a fatty layer?
Nerve cells, or neurons, are insulated by a fatty layer called myelin. This myelin sheath helps to insulate and protect the axon, which allows for faster transmission of electrical impulses along the neuron.
Which connective tissue layer directly surrounds each axon in a nerve?
A nerve is an enclosed, cable-like bundle of axons in the peripheral nervous system. Within a nerve, each axon is surrounded by a layer of connective tissue called the endoneurium.
The long process of a neuron is called the?
Axon
What is the very beginning of the axon called?
The very beginning of the axon is called the axon hillock. It is where the electrical signals from the cell body are gathered and then transmitted down the axon.
What is the structure at the end of an axon that produces neurotransmitters?
The axon is a single process extending from the axon hillock, sometimes covered by a fatty layer called a myelin sheath that conducts nerve impulses away from the cell body of the neuron.Distal tips of axons are telodendria, each of which terminates in a synaptic knob.
What cell is insulated by a fatty layer?
Nerve cells, or neurons, are insulated by a fatty layer called myelin. This myelin sheath helps to insulate and protect the axon, which allows for faster transmission of electrical impulses along the neuron.
What is the definition of myelin sheath?
A myelin sheath is a layer of myelin (a dielectric, or electric insulator) around the axon of a neuron.
Which connective tissue layer directly surrounds each axon in a nerve?
A nerve is an enclosed, cable-like bundle of axons in the peripheral nervous system. Within a nerve, each axon is surrounded by a layer of connective tissue called the endoneurium.
What is the material surrounding the axon that increases the speed of the nerve impulse?
The material surrounding the axon that increases the speed of the nerve impulse is called myelin. Myelin is a fatty substance that acts as an insulating layer, allowing for faster transmission of electrical signals along the axon.
What is the white lipid material that insulates the axon of a neuron?
The white lipid material that insulates the axon of a neuron is called myelin. In the central nervous system, myelin is created by oligodendrocytes while in the peripheral nervous system the myelin is created by Schwann cells. The purpose of myelin is to speed up action potentials. It's important to know that the myelin does not coat the axon entirely; each sheath of myelin is separated by a gap, called a node of Ranvier. These gaps are responsible for the quick transport of action potentials, due to the fact that the potentials can "jump" from node to node rather than having to travel down the entire length of the axon (this is called saltatory conduction).
The long process of a neuron is called the?
Axon
Why does increasing the axon diameter also increase the speed of impulse conduction?
Larger diameter axons conduct impulses more rapidly than axons with a smaller diameter. Larger axons tend to be myelinated and conduct impulses rapidly. Myelin is a substance rich in lipid that forms an electrical insulation layer around the axon. This insulating myelin sheath allows impulses to be transmitted more rapidly then small diameter axons that are nonmyelinated.
What is the very beginning of the axon called?
The very beginning of the axon is called the axon hillock. It is where the electrical signals from the cell body are gathered and then transmitted down the axon.
What is the structure at the end of an axon that produces neurotransmitters?
The axon is a single process extending from the axon hillock, sometimes covered by a fatty layer called a myelin sheath that conducts nerve impulses away from the cell body of the neuron.Distal tips of axons are telodendria, each of which terminates in a synaptic knob.
What portion of a neuron should be called its secretory component?
Axon/Axon terminals
The single long strand that comes out of the other side of the cell body is called the?
axon-kenyonthanks ya kenyon-lexi
what is the covering of a fatty material that speeds up the passage of a nerve impulse?
The covering of a fatty material that speeds up the passage of a nerve impulse is called the myelin sheath. It is made of lipids and proteins and acts as an insulating layer around the axon of a neuron, allowing for faster transmission of electrical signals.
