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Technically a neural impulse moves from the cell body to the axon terminal, because a nerve impulse is defined as an electrical signal that travels along an AXON.
This may be confusing because neural signals move in three places with respect to the neurons, in three correspondingly different ways, and only one is called the neural impulse.
Neural signals move in these places: betweenneurons (ie, from one neuron to another), intoneurons, and along axons (the outputs of neurons, when a neuron has fired).
BETWEEN NEURONS: A neural signal can be passed from one neuron to another, at a synapse, across the synaptic cleft, by the release of chemicals called neurotransmittersfrom the presynaptic neuron, which diffuse across the synaptic cleft, to fit into receptors on the postsynaptic neuron. This is a chemical transmission of the neural signal, not an impulse.
INTO A NEURON: when a signal has passed from one neuron to another by the release, diffusion, and reception of neurotransmitters, it initiates a graded response in the dendrites of the postsynaptic neuron, which travels with decreasing strength down the dendrites and across the soma (cell body), until it reaches the root of the axon, the axon hillock. This graded response is also not an impulse.
ALONG THE AXON: if enough graded response signalsreach the axon hillock at about the same time, (it might be helpful to think of them as degraded signals, since they get weaker the further they travel), such that their combined strengths can trigger an all or nothing action potential in the axon, then it can be said that the neuron has fired a neuronal impulse.
So, there are neural signals which move betweenneurons and into neurons, and neural impulses which fire and move along axons from the cell body (soma).
What else can I help you with?
What are the 3 main structures of a neuron?
The three main structures of a neuron are the cell body (soma), dendrites, and axon. The cell body contains the nucleus and other organelles, the dendrites receive signals from other neurons, and the axon transmits signals to other neurons or cells.
What are the 4 parts of neuron?
The four parts of a neuron are dendrites, cell body (soma), axon, and terminal branches (axon terminals). Dendrites receive signals from other neurons and transmit them towards the cell body. The axon carries signals away from the cell body to other neurons or cells, and the terminal branches release neurotransmitters to communicate with these target cells.
What is the space where the terminal branches of an axon are close to but not touching the ends of the dendrites of another neuron?
The space where the terminal branches of an axon are close to but not touching the ends of the dendrites of another neuron is called the synaptic cleft. Neurotransmitters are released from the axon terminal into the synaptic cleft, where they then bind to receptors on the dendrites of the receiving neuron to transmit the nerve signal.
What are profuse branches at the end of axons called?
The profuse branches at the end of axons are called axon terminals or synaptic terminals. These structures contain neurotransmitters that are released to communicate with other neurons or target cells at synapses.
Does Dendrites generate and send signals to other cells?
Dendrites are a characteristic of neurons. Neurons are comprised of a soma, or cell body, dendrites, and axons. The soma is located in the center of the neuron and is the location of the nucleus, mitochondria, and other organelles. The dendrites are attached to the cell body; there can be multiple dendrites, up to thousands, or there can be just one. The final structure is what is called an axon. A neuron can only have one axon, which can branch off. At the end of the axon are end terminals, or terminal buttons. These are what "connect" to other neurons (by connecting to their dendrites). The connection goes: terminal button, dendrite, soma, axon, terminal button, dendrite, soma, etc. However, the terminal button and dendrite never actually come in contact; they are separated by a very small gap known as the synaptic cleft.
What are the 3 main structures of a neuron?
The three main structures of a neuron are the cell body (soma), dendrites, and axon. The cell body contains the nucleus and other organelles, the dendrites receive signals from other neurons, and the axon transmits signals to other neurons or cells.
What are the 4 parts of neuron?
The four parts of a neuron are dendrites, cell body (soma), axon, and terminal branches (axon terminals). Dendrites receive signals from other neurons and transmit them towards the cell body. The axon carries signals away from the cell body to other neurons or cells, and the terminal branches release neurotransmitters to communicate with these target cells.
Which part of a neuron is attached to the soma and carries messages out to other cells?
Apex question is which is a part of a neuron that sends out messages answer axon
What is the space where the terminal branches of an axon are close to but not touching the ends of the dendrites of another neuron?
The space where the terminal branches of an axon are close to but not touching the ends of the dendrites of another neuron is called the synaptic cleft. Neurotransmitters are released from the axon terminal into the synaptic cleft, where they then bind to receptors on the dendrites of the receiving neuron to transmit the nerve signal.
What is the microscopic space that separates the axon of one neuron from the dendrites of another neuron?
The microscopic space that separates the axon terminal of one neuron from the dendrites of another neuron is called the synaptic cleft. Neurotransmitters are released from the axon terminal into the synaptic cleft to communicate with the dendrites of the neighboring neuron.
What are profuse branches at the end of axons called?
The profuse branches at the end of axons are called axon terminals or synaptic terminals. These structures contain neurotransmitters that are released to communicate with other neurons or target cells at synapses.
What is a word ending in ical that is to do with axons and dendrites?
Could be terminal for Axon Terminal or electrical- electrical impulses.
Does Dendrites generate and send signals to other cells?
Dendrites are a characteristic of neurons. Neurons are comprised of a soma, or cell body, dendrites, and axons. The soma is located in the center of the neuron and is the location of the nucleus, mitochondria, and other organelles. The dendrites are attached to the cell body; there can be multiple dendrites, up to thousands, or there can be just one. The final structure is what is called an axon. A neuron can only have one axon, which can branch off. At the end of the axon are end terminals, or terminal buttons. These are what "connect" to other neurons (by connecting to their dendrites). The connection goes: terminal button, dendrite, soma, axon, terminal button, dendrite, soma, etc. However, the terminal button and dendrite never actually come in contact; they are separated by a very small gap known as the synaptic cleft.
What are the long fiber between nerve cells?
There are two: an axon and several dendrites.
What is the pathway of action potential through the conducting system?
From dendrites to cell body to axon to axon terminals, in case of nerve cells.
Where are neurotransmitters released?
Neurotransmitters are released from the axon terminal of a neuron into the synaptic cleft, which is the small gap between the axon terminal and the dendrite of a neighboring neuron. neurotransmitters then bind to receptors on the receiving neuron, transmitting the signal.
What effect does an action potential have on a vesicle?
It causes the vesicles (which are in the axon terminal) to move to the cell membrane at the end of the axon terminal, where they merge with the cell membrane, releasing their load of neurotransmitters into the synaptic cleft (gap), where they quickly diffuse to receptors in the post-synapticneuron's dendrites, initiating a graded potential which moves down the dendrites, along the soma,to the axon hillock where it can cause an action potential in that secondneuron.
