Asked by Andy Blackwell Uncategorized
What is the effect when a neuron is more likely to fire?
We need you to answer this question!
If you know the answer to this question, please register to join our limited beta program and start the conversation right now!
Asked in Neuroscience
When neurotransmitters bind to or attach to receptor sites the probability of the postsynaptic neuron firing an action potential?
... Depends entirely on the post-synaptic neuron. If it is an inhibitory synapse (often located on the actual body of the dendrite or soma), then the probability of that post-synaptic neuron firing DECREASES. The reverse is true if it is excitatory; the synapse (more likely located on a dendritic spine) will more likely induce the post-synaptic neuron to fire an action potential.
Asked in Nerves
What happens if If a signal from a sending neuron makes the receiving neuron more negative inside?
Asked in Neuroscience, Nerves
Do neurons connect together at a synapse?
Neurons connect with each other at synapses. That is the principal means by which they communicate. One major form of connection is the release of molecules of neurotransmitter from the sender neuron to the receiver neuron. These molecules can change the voltage potential at the receiving neuron, making it more or less likely to fire.
Asked in Human Anatomy and Physiology
What carries messages from nerve cells to your brain?
other nerve cells... The brain is made up of nerve cells (also called neurons). There are neurons both in the central nervous system (the brain and spinal cord) and the peripheral nervous system. The communication between neurons occurs with release of neurotransmitters (chemicals that affect the surface of neurons). The release of neurotransmitters occurs when an electrical impulse travels down the neuron and causes the neuron to "fire" off neurotransmitter. This electrical impulse is called an "action potential." The release of neurotransmitter can have one of two possible effects on the "receiving" neuron, depending on which neurotransmitter binds with which neuron. It can make the receiving neuron either more likely to fire (excitatory) or less likely to fire (inhibitory). The result of this activity in billions of neurons creates quite a symphony, including everything we call thought.
Asked in Neurophysiology
If a neuron at rest had its inside be more positive at rest than the outside how would this affect neuron signaling and the action potential to signal and is this even possible?
A neuron wouldn't be at rest if it had positive membrane potential. It would fire an action potential. If the neuron remained depolarized then it will fire controllably, and nearby cells are then at risk of being overstimulated. If this activity spreads far enough then it will lead to an epileptic seizure - which is also damaging to neurons.
Asked in Definitions
A slap on the back is more painful than a pat on the back because a slap triggers what?
Asked in Pain, Nerve Pain, Examinations and Tests
A slap on the back is more painful than a pat on the back because a slap triggers?
Asked in Psychology, Neurophysiology
What is happening when you are thinking?
When you are thinking, neurons in your brain are firing; they are caused to fire by inputs from the firing of other connected neurons, and the outputs of their firing causes other connected neurons to fire. However, since neurons have MANY MANY connections to many other neurons, any particular neuron is not SIMPLY or absolutely caused to fire just because one connected neuron fires, nor does its firing absolutely cause every neuron it connects to to fire; rather, neurons remember (through physical changes at synapses) which inputs have in combination been strong enough to cause them to fire, making them more sensitive and therefore likely to fire from a variety of similar inputs. Thus thinking is a neuro-chemical memory process, in which memories lead to memories by associations from within and without, and evoke ideas & concepts through novel combinations.
Asked in Chemistry, Atoms and Atomic Structure
What condition is neuron in when the outside of the neuron has a net positive charge and the inside has net negative charge?
This is called the resting potential (inactive state) of the neuron. However, when a neurotransmitter binds to receptors, electrical stimulus is applied, etc. to induce an opening of ion channels in the membrane of the neuron, positive ions rush into the neuron from the outside to the inside, and result in a sharp increase of the positive charge density (due to more positive ions) inside the neuron. Beyond a certain threshold, this can induce the creation of an action potential, causing the neuron to fire. After the action potential is created, and the neuron fires, there is a short refractory period where the neuron cannot be fired again due to stimuli, when positive ions are pumped back out of the neuron, negative ions are brought into the neuron, and then the ion channels close, leaving the neuron in a polarized state, and returning it to a resting potential.
Asked in Neuroscience
What is restpotential?
Asked in Wildfires
Why does a wildfire occur on that place?
It can occur wherever there is dry vegetation or anywhere that can fuel the fire. Wildfires do not occur in the Sahara Desert or Saudi Arabian desert because there is little vegetation to fuel the fire and the sand is more likely to put out the fire since sand grains have pores that are so small they lack air. Fire also doesn't occur on snow because snow is made out of water that can put out the fire. Fires are more likely to not occur in rainforest or swamps because the vegetation is more wet where it can put out the fire. If the vegetation gets too dry or unhealthy it is more likely to cause a wildfire. Places where it is windy can cause the fire to spread more where it finds new areas to burn and this increases the wildfire. Areas that have experienced a drought are more likely to have a wildfire.
Asked in Colt Pistols and Rifles
Is a colt police positive 32 police ctg colt a rim fire or center fire?
Asked in International Space Station
What would happen if there was a fire on the International Space Station?
Asked in Music Genres
Does music genre effect which political party you prefer?
What is a likely effect on the foxes preying on the rabbits?
Asked in Neuroscience, Nerves
What happens when a neuron is stimulated by another neuron?