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When a neuron is activated by a stimulus, it's plasma membrane instantly becomes permeable to Na+ so these ions quickly diffuse into the neuron as Na+ channels close, the inward flow of Na+ for a brief instant causes the inside of the plasma membrane to become positively charged and the outside to become negatively charged at the point of stimulation, this switch in polarity is called depolarization which is considered the nerve impulse... depolarization is quickly followed by repolarization, once the impulse reaches it's effector, the axon tip forms a synapse (junction) with either another a neuron's dendrites, a muscle etc. which then continues to either pass the impulse along or create an outcome in the target cell.
What else can I help you with?
Is an axon larger than a nerve?
No, an axon is a part of a nerve cell and is smaller than a nerve, which is a bundle of axons.
An electrical impulse moving down an axon is called what?
An electrical impulse moving down an axon is known as an action potential.
Where do axon collaterals emerge on a myelinated nerve?
Axon collaterals emerge from the main axon at regular intervals called Nodes of Ranvier on a myelinated nerve. These points are where the myelin sheath is interrupted, allowing axon collaterals to branch off and communicate with other neurons or muscle fibers.
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 composed of a cell bodydendritesand axon?
Nerve cell or neuron
How does a nerve impluse get transmitted along an axon full 5 pages length answer?
Write your own paper.
What is the difference between a nerve dendrite and a nerve axon structurally?
The nerve axon is the main nerve from where the dendrites originate.
Is an axon larger than a nerve?
No, an axon is a part of a nerve cell and is smaller than a nerve, which is a bundle of axons.
What is the space through which a nerve impulse passes from one nerve cell to another called?
The space through which a nerve impulse passes from one nerve cell to another is called a synapse. It is a small gap between neurons where neurotransmitters are released to transmit signals between the cells.
An electrical impulse moving down an axon is called what?
An electrical impulse moving down an axon is known as an action potential.
Axon is what?
An axon (or axone) is a nerve fibre which is a long, slender projection of a nerve cell, which conducts nerve impulses away from the body of the cell to a synapse.
What does the nerve cell include?
The nerve cell can be thought of as just the nerve body, which is the main part of the nerve cell. The nerve cell is also known as a neuron. The entire neuron includes an axon, nerve body, dendrites, and axon terminals.
Can a nerve fiber survive without its cell or its axon?
No, a nerve fiber cannot survive without its cell body or axon. The cell body provides nutrients and support to the axon, while the axon is responsible for transmitting signals. Without either of these components, the nerve fiber would no longer function.
How can you the word axon in a sentence?
The axon carries nerve impulses away from the cell body.
What is the name of the area where nerve impulses arises?
receptive region?
What are highly branched parts of the nerve cells?
axon
What influences the speed of a nerve impulse?
the diameter of an axon
