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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.
Oh biomed. How we love you.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoNeurons send information using both electrical and chemical signals through neurotransmission or synaptic transmission. As far as the cells are concerned it is purely chemical (neuro-transmitters across a synapse). The electrical part is a pure artifact of ion displacement during cell energization,
EXCEPT that the ion displacement signal is used by myelin-coated cells to increase the propagation speed of a single fiber.
Wiki User
∙ 10y agoIn transmission of nerve impulse, you have depolarization of the nerve body. In this you have electrical type of conduction. In the synapse you have chemicals released. That is always a chemical type of conduction.
Wiki User
∙ 6y agoThe chemical changes cause electrical changes in neurons. It is rather complex, but each nerve cell (neuron) has a chemical transmitter which is released and acts on another neuron. This is CHEMICAL transmission. After the chemical transmitter interacts with certain receptors, it causes a change in the membrane permeability to certain ions. This is the electrical component of transmission.
Wiki User
∙ 9y agoThey work hand in hand to create a reaction to our senses.
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Where does a nerve impulse start?
A nerve impulse starts at the dendrite
How are neural impulses generated?
The neural impulse is the electrical charge that goes from the nerve receptor to the brain. They are generated when the nerve receptor detects a foreign stimuli.
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.
The duration of a nerve impulse is approximately?
A nerve impulse is approximately 1 millisecond.
What cell carries electrical messages?
Nerve cells. They are really more chemical than electrical, however.
What is the difference between synaptic and nerve impulse transmission?
Synaptic transmission is chemical, while nerve impulse or axonal transmission is electrical.
A neuron transmits a nerve impulse as a wave of?
electrical
What cause a nerve impulse move along the nerve fiber?
Electrical diferences.
What causes a nerve impulse move along the nerve fiber?
Electrical diferences.
What happens to a muscle when an electrical impulse from a nerve stops?
yes
What are chemical substances that cause a nerve impulse?
oxytocin
Is the velocity of a nerve impulse greater than electrical conduction's?
yes
What is the firing rate in a nerve?
It is the electrical impulse that operates the nervous system.
A nerve impulse is carried across a synapse by?
Chemical neurotransmitters. Examples of 'classical neurotransmitters' include acetylcholine, dopamine, serotonin, noradrenaline and GABA (gamma-aminobutyric acid).
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
How is an impulse communicated from nerve cell to nerve cell?
Via chemical messangers that cross the synapse.
What does cytoplasm do in the nerve cell?
it allows the electrical impulse to travel more easily :)
