0
synaptic potential
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the synaptic basis for learning and memory?
The synaptic basis for learning and memory is long-term potentation (LTP), which is an increase in a synapse's firing potential after a brief, rapid stimulation.
Inhibitory postsynaptic potential is associated with what?
An inhibitory postsynaptic potential (IPSP) is a kind of synaptic potential that makes a postsynaptic neuron less likely to generate an action potential.
A synaptic knob would be located on a?
A synaptic knob is a tiny bulge at the end of a terminal branch of a presynaptic neuron's axon!
Which ligand channels when open cause inhibitory post synaptic memberane potential?
K^+and Cl^-
What is a sub-threshold change in membrane potential within the cell body that decays as it travels away from its point of origin?
A sub-threshold change in membrane potential in the cell body, such as an excitatory post-synaptic potential (EPSP), does not reach the threshold for action potential initiation. As it travels along the dendrites and cell body, it decays and dissipates, failing to trigger an action potential. This phenomenon is crucial in the integration of signals by neurons.
How is synaptic potential associated with pain?
Synaptic potential refers to the change in electrical potential at a synapse, where neurons communicate. In the context of pain, the transmission of pain signals between neurons involves synaptic potentials. When pain signals are transmitted across synapses, they can result in the perception of pain in the brain.
What is the difference between action potentials and synaptic potentials?
Action potentials are brief electrical events that occur in neurons, allowing for communication over long distances. In contrast, synaptic potentials are changes in voltage that occur at the synapse between two neurons, facilitating communication between them. While action potentials are all-or-nothing responses, synaptic potentials can be excitatory or inhibitory.
What is the synaptic basis for learning and memory?
The synaptic basis for learning and memory is long-term potentation (LTP), which is an increase in a synapse's firing potential after a brief, rapid stimulation.
What happens after nerve signal reaches a synaptic knob?
In general, action potentials that reach the synaptic knobs cause a neurotransmitter to be released into the synaptic cleft. The arrival of the action potential opens voltage-sensitive calcium channels in the presynaptic membrane.
Inhibitory postsynaptic potential is associated with what?
An inhibitory postsynaptic potential (IPSP) is a kind of synaptic potential that makes a postsynaptic neuron less likely to generate an action potential.
A synaptic knob would be located on a?
A synaptic knob is a tiny bulge at the end of a terminal branch of a presynaptic neuron's axon!
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.
What is a sub-threshold change in membrane potential within the cell body that decays as it travels away from its point of origin?
A sub-threshold change in membrane potential in the cell body, such as an excitatory post-synaptic potential (EPSP), does not reach the threshold for action potential initiation. As it travels along the dendrites and cell body, it decays and dissipates, failing to trigger an action potential. This phenomenon is crucial in the integration of signals by neurons.
Which ligand channels when open cause inhibitory post synaptic memberane potential?
K^+and Cl^-
Is it true that a post synaptic potential is a graded potential that is the result of a neurotransmitter released into the synapse between two neurons?
because i dnt know hahaha
What causes calcium channels in the synaptic knob to open?
depolarization of the presynaptic membrane due to an arriving action potential
How does a signal cross the synaptic gap?
When an action potential reaches the axon terminal of a neuron, it triggers the release of neurotransmitters into the synaptic gap. These neurotransmitters then bind to receptors on the postsynaptic neuron, causing ion channels to open and allow ions to flow in, generating a new action potential in the receiving neuron.
