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What are the three ways in which neurons are specialized to transmit nerve impulses very quickly?
Wiki User
∙ 9y ago
they turn in to light and go through three bones...
Wiki User
∙ 11y ago
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Definition of nervous system?
The nervous system is a network of specialized cells that communicate information about an animal's surroundings and itself. It processes this information and causes reactions in other parts of the body. It is composed of neurons and other specialized cells called glia, that aid in the function of the neurons. The nervous system is divided broadly into two categories: the peripheral nervous system and the central nervous system. Neurons generate and conduct impulses between and within the two systems. The peripheral nervous system is composed of sensory neurons and the neurons that connect them to the nerve cord, spinal cord and brain, which make up the central nervous system. In response to stimuli, sensory neurons generate and propagate signals to the central nervous system which then processes and conducts signals back to the muscles and glands. The neurons of the nervous systems of animals are interconnected in complex arrangements and use electrochemical signals and neurotransmitters to transmit impulses from one neuron to the next. The interaction of the different neurons form neural circuits that regulate an organism's perception of the world and what is going on with its body, thus regulating its behavior. Nervous systems are found in many multicellular animals but differ greatly in complexity between species
Why is the myelin sheath so important to the nervous system?
Myelin is a fatty substance that insulates and protects nerve cells and allows them to transmit electrical signals quickly.
What is the adaptive advantage of faster conduction of nerve impulses?
You are able to respond to things more quickly. If you are being attacked or need to move quickly, these nerve impulses can help.
Do Nerve impulses travel quickly?
yes, in woman nerve impulses travel to the brain faster than men
Why do the sensory neuron has short axon and long dendrites?
sensory and motor neurons are sometimes very long so that the impulses can be carried away from the body very quickly. in the motor neuron the impulses "jump" over the fatty tissue to the Node Of Ranvier.
Does this have any Predicate Adjectives or Adjectives They Quickly Transmit Important Information?
Important is an adjective. "Quickly transmit important information" is the predicate. Adjectives describe nouns, predicates tell you that action in a sentence.
Does a reverberating circuit involve an incoming signal that travels along a chain of neurons and quickly dies out?
No, a reverberating circuit does not involve an incoming signal that travels along a chain of neurons and quickly dies out. A reverberating circuit is a circular circuit that returns a signal to its source.
Why are metals good conductors oh heat?
the free-moving electrons transmit heat quickly
What allows nerve cells to transmit signals over long distances?
The neuron has a long, thin tube called the axon which sends an electric nerve impulse very quickly, akin to an electrical cord.
How are nerv impulses transmitted?
Nerve impulses are transmitted between neurons, into neurons, and along neurons. They are transmitted between neurons at a synapse, into neurons at a dendrite, and along neurons at the axon.Transmission at the synapse is via neurotransmitters released from the end of one neuron into the synapse, where they diffuse quickly over to the next neuron, usually to a dendrite or dendritic spine.Transmission into the next neuron is by the neurotransmitters causing pores to open in the next neuron which allow Sodium ions to enter, which begin to propagate a electrochemical impulse by electrotonic conduction along a dendrite and across the soma. Electrotonic conduction is a process in which ions "bump" one another, causing them to somewhat "pile up" eventually at the axon hillock at the beginning of the axon. It's a very fast process, but it looses strength along the way, so in order for the axon to fire, there needs to be either many dendrites contributing, or one or more dendrites being stimulated quickly and often, so as to allow a summation of the voltages resulting from the "pile up" of the ions at the axon hillock.Transmission along the axon of the neuron is by the action potential, which involves a successive exchange of Sodium and Potassium ions, each exchange causing the next.for more about the action potential, see:How_does_a_nerve_impulse_get_transmitted_along_an_axonoriginal answer:Nerve Impulses are transmitted electrochemically via an action potential.Information (either a sensation such as being touched, or a desire for action such as moving your hand and picking up a pen) is passed from the nerves dendrites to its axon which stimulates the action potential.The action potential is a whole subject in itself.
What makes a nerve cell good at its job?
The nerve cell is good at its job because it is very long, and is branched out across the body. It is also well insulated so that electrical impulses can pass quickly to the Central Nervous System.
Why are metals conductors of heat?
Because of their many valence electrons. The free-moving electrons transmit heat quickly.
