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Are neurotransmitters stored within motor neuron endings?
False. Nodes of Ranvier are sections along a mylenated axon that are not mylenated. Instead they contain numerous voltage gated Na and K channels. These channels help transmit the chemical depolarization along the axon until it reaches the synaptic node. Neurotransmitters are stored in synaptic vessicles in the synpatic node.
How is synaptic potential associated with pain?
What is the role of synaptic potentials in the perception of pain? What kind of reaction might you expect if synaptic potentials were removed?
The narrow space between the synaptic terminal and the muscle fiber is the?
synaptic cleft.
What causes the synaptic delay?
The cause of synaptic delay is attributed mainly to the time needed for the synaptic vesicles to release neurotransmitter into the synaptic cleft. While it can be considered a combination of binding to the presynaptic membrane (which is relatively a transient process) and subsequent exocytosis of the neurotransmitter, the main factor is release. Additionally, it does take a very short period of time for the neurotransmitter to diffuse across the synaptic cleft and bind to to its receptors on the post-synaptic membrane.
What are The chemicals that bridge the synaptic gap?
Chemicals that bridge the synaptic gap are called neurotransmitters.
What are the tiny gaps between adjacent schwann cells called?
Remember that the Schwann cells are made of myelin sheath which insulate the impulse, but also block the sodium ion/potassium ion channels. Therefore there has to be a point where the action potential 'jumps' to, and these are the gaps between the Schwann cells, they are called the Nodes of Ranvier.
What is synaptic potential?
synaptic potential
The are sack-like structures found inside the synaptic knob containing chemicals?
synaptic vesicles
Are neurotransmitters stored within motor neuron endings?
False. Nodes of Ranvier are sections along a mylenated axon that are not mylenated. Instead they contain numerous voltage gated Na and K channels. These channels help transmit the chemical depolarization along the axon until it reaches the synaptic node. Neurotransmitters are stored in synaptic vessicles in the synpatic node.
What is the small space separating pre and post-synaptic neurons?
synaptic cleft (also known as "synaptic gap")
What causes calcium ions to enter the synaptic bulb?
The nerve signal arrives at a synaptic knob and causes calcium channels to open. This allows the calcium ions to enter the synaptic knob. Calcium ions entry into the synaptic knob triggers exocytosis of synaptic vesicles, which release acetylcholine into the synaptic cleft.
Is synaptic transmission always from pre to post synaptic?
Yes
What are synaptic gaps?
Synaptic gaps are the spaces between neurons.
What are the tiny sacs found within the terminal button which release chemicals into the synapse?
The tiny sacs in the synaptic knob are known as synaptic vessels. The synaptic vessels release chemicals into the bloodstream with each synapse.
How is synaptic potential associated with pain?
What is the role of synaptic potentials in the perception of pain? What kind of reaction might you expect if synaptic potentials were removed?
What are the principles of synaptic transmission?
Calcium ions enter the presynaptic neuron resulting in the release of neurotransmitter from the per-synaptic membrane. The neurotransmitter diffuses across the synaptic cleft, fusing with the receptors of the post-synaptic membrane. This changes the sodium channels to open and sodium ions will to flow into the post-synaptic neuron, depolarizing the post-synaptic membrane. This initiates an action potential. After the post-synaptic neuron has been affected, the neurotransmitter is removed by a type of enzyme called cholinesterase. The inactivated neurotransmitter then returns to the pre-synaptic neuron.
When was Synaptic - software - created?
Synaptic - software - was created on 2001-11-13.
