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What direction does nerve impulse travel?
Along a nerve cell, the impulse travels from the axon to the dendrites and then again to the axons through the synapse.
What is the correct order that information passes through in a neuron?
The flow of information across nerve cells is called a nerve impulse in which the axons of the cell must depolarize, repolarize and go through a refractory period before reaching the resting potential. At this point, another impulse can occur.
Why does the spinal cord has a lot of nerve receptors?
its the cns and all nerve receptors go through here to respond to the rest of the body
Describe the pathway an impulse travels macroscopically through the nervous system from the brain to the muscle?
The NeuronThe cells that carry information through your nervous system are called neurons, or nerve cells. The message that a neuron carries is called a nerve impulse. The Structure of a Neuron:The structure of the neuron enables it to carry nerve impulses. A neuron has a large cell body that contains the nucleus, threadlike extensions called dendrites, and an axon. The dendrites carry impulses toward the neuron's cell body. The axon carries impulses away from the cell body. Nerve impulses begin in a dendrite, move toward the cell body, and then move down the axon. A neuron can have many dendrites, but it has only one axon. An axon, however, can have more than one tip, so the impulse can go to more than one other cell. Axons and dendrites are sometimes called nerve fibers. Nerve fibers are often arranged in parallel bundles covered with a connective tissue, something like a package of uncooked spaghetti wrapped in cellophane. A bundle of nerve fibers is called a nerve.Kinds of Neurons:Three kinds of neurons are found in the body-- sensory neurons, interneurons, and motor neurons.A sensory neuron picks up stimuli from the internal or external environment and converts each stimulus into a nerve impulse. The impulse travels along the sensory neuron until it reaches the interneuron, usually in the brain or spinal cord. An interneuron is a neuron that carries nerve impulses from one neuron to another. Some interneurons pass impulses from sensory neurons to motor neurons. A motor neuron sends an impulse to a muscle or gland, and the muscle or gland reacts in response.How a Nerve Impulse TravelsThe Synapse:What happens when a nerve impulse reaches the axon tip at the end of a neuron? At that point, the impulse can pass to the next structure. Sometimes the structure is a dendrite of another neuron. Other times, the structure is a muscle or a cell in another organ, such as a sweat gland. The junction where one neuron can transfer an impulse to another structure is called a synapse. (SIN aps). How an Impulse is Transferred:For a nerve impulse to be carried along at a synapse, it must cross the gap between the axon and the next structure. The axon tips release chemicals that carry the impulse across the gap.You can think of the gap at a synapse as a river, and an axon as a road that leads up to the riverbank. The nerve impulse is like a car traveling on the road. To get to the other side, the car has to cross the river. The car gets on a ferry boat, which carries it across the river. The chemicals that the axon tips release are like the ferry, carrying the nerve impulse across the gap.
When you want to move your arm your brain sends a message where does the message go?
Brain send the message via nerve impulses involving neurons which use the neuro-transmitter AcetylcholineEach nerve impulse begins in the dendrites of a neuron's. the impulse move rapidly toward the neuron's cell body and then down the axon until it reaches the axon tip.a nerve impulse travels along the neuron in the form of electrical and chemical signals.Acetylcholine- a neurotransmitter released at the neuromuscular junction triggers a muscle action potential, which leads to muscle contraction.
How does a message jump across the synaptic gap and passes to the next neuron?
Nerve impulses, which are electrical, do not jump across the synaptic gap at synapses. Instead, the arrival of a nerve impulse at the axon terminal triggers the release of chemicals called neurotransmitters from the axon terminal into the synaptic gap, the nerve impulses then travel across the chemicals to the place where it needs to go to
What impulse conduction is the fastest in neurons?
Axons conduct the nerve impulses. Dendrites receive the impulses. Possible the impulses go through the dendrites faster, though the synaptic cleft may slow this pathway. Dendrites are much shorter than axons.
Dose nerve damage pain come and go?
it depends on what the nerve damage was from and how much your body has healed
What happens when a nerve impulse is traveling from the central nervous system to the organs of the body?
The organ or body part to which the impulse is going reacts. That is the case in every day live. When you move your finger it does so because the brain gives the command. Those are "normal" impulses. If something is wrong e.g. you have an inflammation or injury etc- then the impulse would be one of pain. Not always does the impulse go to the affected place. Sometimes you can feel a toothache but it can indicate a heart problem. However those are rare exceptions. Basically every impulse of the CNS results in the reaction of a bodypart, often unnoticed. When you eat sugar then the brain tells the pancreas to produce insulin, something one does not feel. As a matter of fact the majority of brain "commands" are automatic and go unnoticed by a person since those impulses just keep the body working normally.
The structure that recevies an impulse from the dendrite is the?
Cell body.Impulses a received in the dendrite, go through the cell body and out to the axon, where they are transmitted to the next dendrite. Easy way to remember it, it's the alphabet backwards - Dendrite, Cell Body, Axon
What cells go through mitosis?
nerve cells and sex cells
What type of messages travel from nerve cells?
They go through synapses.
