Question

How quanta of neurotransmitter are related to miniature postsynaptic?

How quanta of neurotransmitter are related to miniature postsynaptic?

Homework Answers

Answer #1

In this refernce, quanta refers to the smallest quantity of neurotransmitter that can be released and minature postsynaptic refers to smallest amount of stimulation that one neuron can send to another neuron. Neurotransmitters released into the synaptic cleft is said to be quantal, which means that neurotransmitters are relased in small parcels.This quantal release of neurotransmitter has a critical influence on the electrical potential created in the postsynaptic membrane. Miniature postsynaptic potentials are caused by the random release of single quanta of neurotransmitter from a resting presynaptic termina. Quantal release is the mechanism by which most neurotransmitters arte transmitted throughout the body.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
What effect does an inhibitory neurotransmitter have on the membrane polarization in postsynaptic neurons?
What effect does an inhibitory neurotransmitter have on the membrane polarization in postsynaptic neurons?
The effect of a neurotransmitter on a postsynaptic neuron are typically very brief because the concentration...
The effect of a neurotransmitter on a postsynaptic neuron are typically very brief because the concentration of the neurotransmitter in the synaptic cleft decreases rapidly soon after transmitter is secreted by the presynaptic neuron. Describe 3 mechanisms by which the transmitter is removed. Which of the following characteristics does NOT apply to both chemical and electrical synapses? Communication between interacting cells involves changes ion concentrations in the cytosol Only one-way communication between nerve cells is permitted. Action potentials are involved...
In contrast to excitatory postsynaptic potentials, inhibitory postsynaptic potentials… a. Involve changes in ion flow across...
In contrast to excitatory postsynaptic potentials, inhibitory postsynaptic potentials… a. Involve changes in ion flow across the cell membrane. b. Result from neurotransmitter molecules binding to metabotropic receptors. c. Result from neurotransmitter molecules binding to ionotropic receptors. d. Can undergo spatial summation. e. Result in hyperpolarization.
What is the effect of an IPSP on the postsynaptic cell? The cell is less likely...
What is the effect of an IPSP on the postsynaptic cell? The cell is less likely to generate an action potential. The cell is more likely to generate an action potential The cell releases more neurotransmitter. There is upregulation of enzymes that destroy the neurotransmitter.
When an IPSP is initiated a postsynaptic cell, what kind of membrane potential caused the release...
When an IPSP is initiated a postsynaptic cell, what kind of membrane potential caused the release of neurotransmitter in the presynaptic cell? Depolarization Hyperpolarization
1. A substance interferes with the opening of the Na+ channels in the postsynaptic membrane, causing...
1. A substance interferes with the opening of the Na+ channels in the postsynaptic membrane, causing them to open more slowly when bound to a neurotransmitter. Explain, in detail, the effect this substance will have on the formation of an action potential in the postsynaptic neuron. 2. Explain which branches of the peripheral nervous system are acting when you are watching television at home. Describe the effects that each of these branches have on the body during this time
An inhibitory neurotransmitter may cause the movement of which ion across the membrane? a) Na+ b)...
An inhibitory neurotransmitter may cause the movement of which ion across the membrane? a) Na+ b) Mg2+ c) K+ d) Ca2+ Excitatory neurotransmitters produce which types of electrical responses in the postsynaptic neuron? a)Hyperpolarizations b)EPSPs c)IPSPs d)Threshold level inhibitions Neurotransmitters induce membrane potential changes: a) by opening voltage-gated Na+ channels on the postsynaptic axon hillock. b) on the presynaptic cell body. c) by opening mechanically-gated Mg2+ channels on the postsynaptic axon. d) on the postsynaptic dendrites and cell body
11) In classical neurotransmission (axo-dendritic synapses), postsynaptic cellular processes that receive information, in the form of...
11) In classical neurotransmission (axo-dendritic synapses), postsynaptic cellular processes that receive information, in the form of a neurotransmitter, from the presynaptic neuron are termed Dendrites Axon Soma Myelin Sheath 12) Which neuronal structure is covered by glia and is responsible for the propagation of the action potential? Soma Axon Dendrites Receptors 13) Identify the neuronal structure associated with neurotransmitter release. Axon Axon terminal Dendrites Soma
If a neurotransmitter is released from an axon terminal and binds to a receptor on the...
If a neurotransmitter is released from an axon terminal and binds to a receptor on the postsynaptic dendrites, and that binding causes a K+ channel to open, then: A. Resting membrane potential is maintained B. An IPSP is generated and the cell depolarizes C. An EPSP is generated and the cell depolarizes D. An EPSP is generated and the cell hyperpolarizes E. An IPSP is generated and the cell hyperpolarizes
Briefly describe how NMDA and AMPA receptors work together to produce a postsynaptic response, and how...
Briefly describe how NMDA and AMPA receptors work together to produce a postsynaptic response, and how NMDARs are involved in coincidence detection .
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT