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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.
What happens when sodium enters a neuron?
When sodium enters a neuron, it triggers depolarization of the cell membrane, which leads to an action potential being generated. This action potential then travels along the neuron, allowing for communication between different neurons or between a neuron and a muscle cell. Sodium influx is a key step in the process of nerve signal transmission.
What is somatodendritic?
Somatodendritic refers to the part of a neuron that includes the cell body (soma) and dendrites. This region of the neuron is involved in receiving and integrating incoming signals from other neurons.
A neuron reaches its trigger point when?
A neuron reaches its trigger point when the combined inputs it receives from other neurons or sensory receptors exceed a certain threshold. Once this threshold is reached, the neuron generates an action potential, which propagates down its axon to communicate with other neurons or muscle cells.
How is the communication between neurons an electrochemical event?
Because the charge travels from the dendrites to the axon to the head of the neuron, now remember neurons do not touch (synapse) so the the charge must now get to the dendrites of the next neuron from the head of the first, so the head releases chemicals called Nero transmitters that carry the impulse to the next neuron. thus Electro-Chemical
What proteins does a neuron make?
A molecule is many order of magnitude smaller than a neuron. A neuron is made of molecules not the other way around.
A molecule that is released from synaptic vesicles and serves as the means of communication from one neuron to the next or from a neuron to an effector cell?
Neurotransmitter.
What do molecules make?
A molecule is many order of magnitude smaller than a neuron. A neuron is made of molecules not the other way around.
A molecule that is released from synaptic vesicles and serves as the means of communication from one neuron to the next or from one neuron to an effector cell?
a neurotransmitter such as acetylcholine, or dopamine. Even a neuropeptide.They will cause a receptor gated channel to open post synaptically
What molecule is released from synaptic vesicles and serves as the means of communication from one neuron to the next or from a neuron to an effector cell?
The molecule released from synaptic vesicles is called neurotransmitter. It acts as the chemical messenger that transmits signals between neurons or from neurons to other cells such as muscle cells or gland cells. Examples of neurotransmitters include dopamine, serotonin, and acetylcholine.
Where is the neuron?
The Inter-neuron (also known as the local circuit neuron, relay neuron or the association neuron) is the neuron which connects the afferent and the efferent neurons in the neural pathways.
Why is a neuron called an interneuron?
A neuron is called a inter-neuron because that specific neuron takes impulse from one neuron to a next neuron. For example your sensory neuron sends a impulse that you had felt a hot object. It goes through the spine to a inter-neuron to a motor neuron (this processes is called a reflex). Then the motor neuron tells your muscles in your hand to move
Define relay neuron?
a relay neuron is the neuron that picks up the message from the sensory neuron and delivers it to the motor neuron in the spinal cord or the brain
What is the 3 types of neuron?
one type of neuron is the motor neuron
What is intermixed neuron?
a neuron which recieve both messages from afferent and efferent neuron...
What type of neuron connects to a muscle?
A motor or efferent neuron.
What is a neuron impulse?
it is neuron impulse
