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The electrical signal travels down the axon to the axon terminals where it tells the vesicles to release the neurotransmitters (which are chemical signals consisting of hormones like dopamine and adrenaline) into the synaptic cleft which travel to the receptors of the receiving cell which releases the second messengers which are chemical signals that propagate an electrical impulse in the receiving cell.
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How do nerve cells communicate with each other to transmit signals within the body?
Nerve cells communicate with each other through electrical and chemical signals. When a nerve cell is stimulated, it sends an electrical impulse down its length. At the end of the cell, neurotransmitters are released into the synapse, a small gap between nerve cells. These neurotransmitters bind to receptors on the neighboring cell, triggering a new electrical impulse and continuing the signal transmission.
How do nerve impulses cross the gap between nerve cells?
When an electrical signal, or impulse, reaches the end of an axon it triggers chemicals called transmitters. The electrical signals then become chemical ones as the transmitters cross the synapse, the gap between an axon and a dendrite. When they reach the dendrite of another neuron they spark a new electrical signal that then travels the length of that nerve cell. And it does this over and over until it reaches its destination.
The events of a nerve impulse?
The electrical impulse in a nerve cell begins when ions move through the cells surface through ion channels.The nerve impulse.A nerve impulse is a wave of excitation that quickly travels within the surface of a neurone (nerve cell). This nerve impulse usually travels on certain parts of the nerve cell: on a dendrite or an axon. Within a neurone the first event depends on the type of 'nerve impulse'; there are two important types:1- nerve impulses generated at dendrites2- self propagating nerve impulses (action potentials) that travel along the axonNerve impulses generated at dendrites.Dendrites feed into the 'cell body' (soma) of a neurone. Nerve impulses that are generated in these dendrites travel toward the cell body.A sequence of events occur at the surface of a dendrite when the nerve impulse is sparked. The first event is transduction; this involves the transformation of one form of energy outside the dendrite into electrical energy within the dendrite.Nerve impulses that travel along axons.Nerve cells often have many dendrites but often only have a single axon. The essential difference between the two parts of the nerve cell is:- in dendrites electrical impulses travel TOWARDS the cell body of the neurone- in the axon the electrical impulses travel AWAY from the cell body of the neuroneThe nerve impulse that travels along an axon begins at the 'base of the axon', where the cell body and axon merge. This site is called the 'axon hillock' and is found to be the site where the first event in the formation of a nerve impulse actually occurs. Again, the first event is transduction at the axon hillock.Conclusion; the first event.For both of the cases above, and for virtually any other case, the nerve impulse begins with a process of transduction. The electrical nerve impulse begins once the first 'ions' leave or enter the nerve cell. Usually sodium ions enter, sometimes calcium ions are the firs to enter, sometimes potassium ions are the first to leave.
An electrical impulse moving down an axon is called what?
An electrical impulse moving down an axon is known as an action potential.
What part of the neuron conducts the nerve impulse?
Dendrite toward the cell body, axon away from the cell body.
What is the difference between synaptic and nerve impulse transmission?
Synaptic transmission is chemical, while nerve impulse or axonal transmission is electrical.
The neurotransmitters of a neutron enable a nerve impulse to do what?
Neurotransmitters in a neuron allow a nerve impulse to be transmitted from one neuron to another by crossing the synapse and binding to receptors on the receiving neuron. This triggers an electrical or chemical signal to continue the nerve impulse along the neural pathway.
What causes a nerve impulse move along the nerve fiber?
Electrical diferences.
What cause a nerve impulse move along the nerve fiber?
Electrical diferences.
What happens to a muscle when an electrical impulse from a nerve stops?
When the electrical impulse from a nerve stops, the muscle relaxes and returns to its resting state. This is because the nerve impulse initiates the release of calcium ions in the muscle cells, leading to muscle contraction. When the nerve impulse stops, the calcium ions are reabsorbed, causing the muscle to relax.
What are chemical substances that cause a nerve impulse?
oxytocin
How do nerve cells communicate with each other to transmit signals within the body?
Nerve cells communicate with each other through electrical and chemical signals. When a nerve cell is stimulated, it sends an electrical impulse down its length. At the end of the cell, neurotransmitters are released into the synapse, a small gap between nerve cells. These neurotransmitters bind to receptors on the neighboring cell, triggering a new electrical impulse and continuing the signal transmission.
Is the velocity of a nerve impulse greater than electrical conduction's?
yes
A nerve impulse is carried across a synapse by?
neurotransmitters, which are chemical messengers that transmit signals between neurons. When a nerve impulse reaches the end of a neuron, it triggers the release of neurotransmitters into the synapse. These neurotransmitters then bind to receptors on the neighboring neuron, initiating a new nerve impulse to continue the signal transmission.
How is an impulse communicated from nerve cell to nerve cell?
Via chemical messangers that cross the synapse.
Where is the neuron in the body?
Neuron is the nerve cells that carry messages to the brain .The various parts of neuron are dendrite ,axon ,nucleus , cell body and nerve ending . All the information from the environment is detected by the specialised tips of nerve cells .These receptors are usually located in our sense organs such as,nose , tongue and so on. The information acquired at the end of the dendritic tip of a nerve cell sets off a chemical reaction that creates an electrical impulse . This impulse travels from the dendrite to the cell body , and then along the axon ,to its end .At the end of the axon , the electrical impulse sets of the release of some chemicals . These chemicals cross the gap or synapse, and start a similar electrical impulse in a dendrite of the next neuron . This is how nerve impulse travel in a body
What is impulse in the nervous system?
electrical wave conducted along the nerve generated by the voltage difference across the cell membrane of the nerve cells.
