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Nerves
Nerves are thread-like structures that form a network of pathways that transmit information from the brain to the body and the body to the brain, in the form of electrical impulses.
1,605 Questions
What are nerve impulses and why are they important?
nerve cells are important because they transmit everthing to our brain. they use elelctric pulses a bit like Morse code. without them we would not smell, hear,see,feel and move because the sending is a 2 way process. eg. your brain sends a message through the nerve's into the leg nerve and tells it to move and it does. the second is your organs to your brain. eg. nose send a signal to brain and message of the smell of your dinner and brain reacts and you start eating. in layment terms you could not do anything in the world except think to yourself.
What does RSD nerve damage mean?
RSD is a chronic neurological syndrome characterized by: severe burning pain. pathological changes in bone and skin. excessive sweating. Reflex sympathetic dystrophy syndrome (RSDS), also known as complex regional pain syndrome, is a rare disorder of the sympathetic nervous system that is characterized by chronic, severe pain. Excessive or abnormal responses of portions of the sympathetic nervous system are thought to be responsible for the pain associated with reflex sympathetic dystrophy syndrome.
How is a motor neuron specialised?
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What is the function of the ventral hypothalamic neurons?
control secrection of the thyroid stimulating hormone ( TSH)
No, synaptic transmission is chemical, not electrical.
What if the brain did not have neurons?
The brain has two kinds of cells, neurons and glial cells. So if the brain did not have neurons it could still have glial cells, but they have no function in the absence of neurons. You would, in effect, have converted the brain into a tumor. Human beings cannot live without a brain. (Nor any irrational animals)
We wouldn't be animals, we would be stupid zombies.
The process that describes how a signal travels from one end of a neuron to the other is called neurotransmitter release. Neurons are very important.
What will not happen if a nerve cell is damaged?
Nothing dangerous will happen except for that area where the nerve is damaged it will probably hurt but usually it will heal and it will seem like nothing has happened. But if the cells are damaged badly you won't have any feeling in the part of the body where the cells are damaged. Also the cell may not regenerate.
Is equilibrium potential the same as resting potential?
The equilibrium potential refers to the electrochemical potential at equilibrium of a particular ion, as calculated by the Nernst equation. The resting potential refers to the weighted average based upon membrane permeabilities of all the equilibrium potentials of the various ions in a given cell, as calculated by the Goldman equation.
What is the same as a sensory nerve?
The peripheral nervous system is the same as the sensory nerves. These are the nerves which are responsible for the various senses.
What rushes out of the axon when a neutron depolarizes?
The sodium channels open and flood the concentration of potassium ions creating a sequence of positive impulses.
Interneurons or association neurons are?
Interneurons or association neurons are connector neurons that establish connections between other neurons.
A person who studies immunology is called an immunologist. Some specific doctors involved with immunology are also called allergists. Immunologists study the immune system.
How does the shape of the nerve cells help to be an offerent nerve?
the cell membrane is where all the nerves are stored then when the body is ready the nucleas realeases the nerve to the cytoplasm and that takes it into the body
First, I'm not really sure what the question is since offerent is not a way to describe the function of a nerve. I think you mean afferent or efferent, but you should clarify if your still want an answer.
Also, the answer, well I dont know who wrote this but even someone with basic biology from 5th grade should be asking themselves, what? The cell membrane has no "nerve storage" capasity at all. In fact all cells, including nerves (neurons), which are in fact cells themselves, have cell membranes. And the nucleus, in the simplest explanation, is where the genetic information of the cell is stored. It doesn't release anything. It is where the DNA lives, in all cells including neurons, which are cells. The cell membrane is a phospholipid bilayer that functions to keep things in or out of the cell. It gives structure to the cell and allows it to maintain an internal homeostatis.
Neurons can be classified many different ways and as with all biology, structure dictates function. If you are looking for information with regard to bipolar, multipolar or unipolar cells, http://en.wikipedia.org/wiki/Neuron. Or type into Google the specific cell type or shape you are looking for. Hope this helps and be careful about any answers you get over the internet!
Still dont get it, what the heck kind of answer was that? If you dont know dont write!
Every way possible, there is no "standard" shape - mostly because their shape is set by their function.
Every cells are shaped on the basis of their microtubules and microfilaments
neuron cells that are alive but are not doing their specific function. For example sending their message to move a muscle or helping the person speak. When the sensitive neurons are dormant, the person will have impairment feeling pain, cold, heat, pressure.
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.
Not exactly; as an impulse moves from one neuron to another it crosses a small space between the neurons called a synapse.
The neurons as said to 'not touch' because the cell MEMBRANES of the two neurons do NOT touch, nor merge, nor consequently is there any sharing of cytoplasm between the two neurons.
The two neurons ARE, however, HELD TOGETHER at that synapse by small molecules called SYNAPTIC ADHESION MOLECULES, which protrude FROM each neuron into the synaptic cleft or gap and then stick to one another. In this sense, PARTS of neurons do 'touch' PARTS of other neurons, in a MECHANICAL or structural manner, but NOT in an electrical or signal sense. The neural SIGNAL passes through the synaptic cleft or gap via neurotransmitter chemicals which are released by one neuron, diffuse quickly through the gap, and then stimulate a signal in the receiving neuron.
Is longevity a special characteristic of neurons?
yes longevity is a trait of neurons along with a high mebatolic rate and the lack of ability to divide (amitotic)
What are cortical pyramidal neurons?
They are neurons that can be found in all six of cortical layers (except layer 1), and they are excitatory projection neurons.
