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Anonymous users2024-02-061. EPSP refers to excitatory synapse.
Excitatory postsynaptic potential is referred to as epsp. Refers to the membrane potential of a depolarizing nature generated in postsynaptic neurons by excitatory synaptic activity.
Variation. Mechanism:
When an excitatory transmitter acts on receptors on the postsynaptic membrane, it causes the Na or Ca channels on the posterior membrane to open, resulting in an inward current of Na or Ca, resulting in depolarization of the local membrane.
2. IPSP is an inhibitory transmitter released by the presynaptic membrane, resulting in an increase in the permeability of the postsynaptic membrane to Cl and a local hyperpolarization potential in Cl influx.
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Anonymous users2024-02-05EPSP (Excitatory Postsynaptic Potential) ipsp (Inhibitory Postsynaptic Potential) Hope it helps you a little!
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Anonymous users2024-02-04EPSP is enolpyruvate shikimic acid phosphate, EPSP formation is an excitatory transmitter that opens up certain ion channels, increases the permeability of the posterior membrane to Na+ and K+, and sodium ions.
The influx is greater than the potassium ion.
outflow, so a net inward current occurs.
ipsp（inhibitory post-synaptic potential；Inhibitory postsynaptic potential) refers to the release of inhibitory transmitters (transmitters released by inhibitory interneurons) from the presynaptic membrane, resulting in an increase in the permeability of the postsynaptic membrane mainly to Cl-, and a local hyperpolarization potential for Cl- influx.
Features of EPSP and IPSP:
EPSP lasts for about 10ms and can be summed up. EPSP is formed by the simultaneous movement of Na+ and K+ through a unified channel, and the particle flow that forms EPSP may also include the inflow of Cl-. When the EPSP reaches the threshold potential level, the peak potential bursts.
Under the action of inhibitory transmitters, the posterior membrane generates a hyperpolarized potential, which becomes the inhibitory postsynaptic potential (IPSP). The IPSP lasts about 10ms and can be summed up. IPSP occurs due to the increased permeability of the inhibitory transmitter postsynaptic membrane to Cl- and K+, resulting in Cl- influx and/or K+ efflux.
The above content reference:
Encyclopedia-EPSP (enolpyruvate phosphate shikimic acid).
Encyclopedia-ipsp
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Anonymous users2024-02-03IPSP: The presynaptic membrane releases inhibitory transmitters (transmitters released by inhibitory interneurons), resulting in increased predominantly Cl- permeability of the postsynaptic membrane and local hyperpolarization potential of Cl- influx.
EPSP: Excitatory Postsynaptic Potential, English name: Excitatory Postsynaptic Potential, abbreviated as EPSP.
It refers to the depolarizing membrane potential changes of the postsynaptic neurons produced by the excitatory synaptic activity.
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Anonymous users2024-02-021. EPSP refers to excitatory postsynaptic potential, English name: Excitatory Postsynaptic Potential, referred to as EPSP. Refers to changes in membrane potential of a depolarizing nature in postsynaptic neurons resulting from excitatory synaptic activity.
Mechanism: When an excitatory transmitter acts on receptors on the postsynaptic membrane, it causes the opening of NA or CA channels on the postsynaptic membrane, resulting in an inward current of NA or CA, resulting in depolarization of the local membrane.
2. IPSP is an inhibitory transmitter released by the presynaptic membrane, resulting in an increase in the permeability of the postsynaptic membrane to Cl and a local hyperpolarization potential in Cl influx.
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Anonymous users2024-02-01What do epsp and ipsp mean in physiology, this is really not neat.
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Anonymous users2024-01-31Answer: He Liang]: a
During synaptic transmission, when the excitation of the presynaptic nerve is transmitted to the nerve endings, the presynaptic membrane undergoes depolarization—transmitter release into the synaptic cleft—postsynaptic membrane depolarization (generating excitatory postsynaptic potential EPSP) or hyperpolarization (generating inhibitory postsynaptic potential IPSP) o Therefore, the common feature of EP-SP and IPSP is the depolarization of the presynaptic membrane. EPSP makes the postsynaptic nerve more excitable, and IPSP makes the postsynaptic nerve less excitable.
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