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Compare and contrast the events that occur at a neuromuscular junction (NMJ) and a neuron-neuron junction (a chemical synapse (CS)). Take it step by step, pointing out similarities or differences at each step. Begin with “Both processes begin with an action potential travelling down the axon.” and then tell me what is the same and what is different as the story unfolds.
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- What is the difference between an action potential and a synapse? (select all that apply) The action potential moves down the axon and a synapse is between neurons. The synapse travels long distances and the action potential can only travel short distances. The action potential starts at the dendrites and the synapse starts at the ахon. The action potential is always the same and the synaptic potentials vary. the action potential involves only the postsynaptic neuron, but the synapse involves both the pre- and post-synaptic neurons.I have stimulated a neuron with dopamine for a second followed by treating it with cocaine and calcium chelating agent (which chelates out all calcium from the system making them unavailable for function), what will be the effect of such impulse on generating an action potential in the post-synaptic neuron? Will it be different if I pretreat the set of nerve cells with cocaine and calcium chelating agent followed by stimulating the neuron with dopamine? Justify your answer with proper reasoning in brief.Please, I do not understand this question. An explanation leading to the CORRECT answer would be helpful! Question: White matter in your spinal cord typically are neurons involved in transferring signals very rapidly throughout the central nervous system. The white color of white matter is the result of myelin sheaths around axons Which of the following is the most important major difference between signals moving through white matter vs gray matter?
- You are investigating the effects of a newly discovered cell type. You have an intact synapse (including pre- and post-synaptic neurons) in a dish and observe what happens upon electrical stimulation. Following electrical stimulation of the pre-synaptic neuron, you record an action potential in the pre-synaptic neuron and an EPSP in the post-synaptic neuron. The synapse most likely utilizes which of the following neurotransmitters? Sodium (Na++) GABA Calcium (Ca++) GlutamateWhich of the following statements is FALSE? (Choose the best answer) O Neurons in the nervous system use electrical and chemical synapses to communicate between neurons and their target cells. Chemical synapses allow presynaptic neurons to excite or inhibit the postsynaptic neurons. O Electrical synapses allow presynaptic neurons to excite or inhibit the postsynaptic neurons. O Electrical synapses allow direct exchanges of both electric current and cytoplasmic contents. A single neuron uses either the electrical or chemical synapses to communicate with its target cells.These neurons belongs to the CNS: (More than one possible choice) A neuron in the brain A neuron carrying a signal into a skeletal muscle A neuron carrying a signal into cardiac muscle A neuron carrying signals form receptors in the skin A neuron carrying signals from the stomach a neuron in the spinal cord grey matter
- Arrange the events that occur during synaptic transmission. Use letters A-F to denote the correct sequence. Use the diagram on the right as a clue. Example: SENDING NEURON B 1. lon channel opens Synepto SYNAPSE 1. lon channel opens 2. Neurotransmitter is released into synaptic cleft SYNAPTIC CLEFT RECEVING HEURC4 Neurotransmitter 3. Vesicle fuses with plasma membrane Jon chennels Neurotransmtter Reseptor deurotranemitter brohen down and sa sd 4. Neurotransmitter binds to receptor BOns 前 命 5. Action potential arrives 6. lon channel closes the obeicos in the bo y belo M (A nIn chemical synapses, transmission occurs in a forward direction because :-a- neurotransmitter receptors are found only in the postsynaptic membraneb- the subsynaptic membrane does not contain neurotransmitter vesiclesc- the subsynaptic membrane is more sensitive than the membrane of synaptic knob to the effect of neurotransmittersd- the subsynaptic membrane contains both ligand-gated and voltage-gated ionic channelsPut the following steps that occur at the synapse during information transfer between neurons in order. 1 [ Choose ] [Choose ] Calcium causes release of neurotransmitter from cells Channel proteins open to allow Na+ into cells and generate an action pote Neurotransmitter binds to a specific receptor on post-synaptic neuron Neurotransmitter diffuses into synaptic space Action potential arrives and causes Ca2+ to diffuse [ Choose 4 [ Choose ] [ Choose ]
- Summarize the steps in generating an action potential as a flowchart. You can make your flowchart on paper and take a picture of it, or make it electronically. Be sure you’ve included: the location in the neuron and components of the neuron involved, the types of cellular transport and ions involved, how action potentials can be stimulated and inhibited. you can get the information from this: https://youtu.be/HYLyhXRp298Drag and drop the terms or phrases into the correct spots so they are the matching characteristics for the neurons. You can use some more than once. CHARACTERISTICS FUNCTION DENDRITES CELL BODY AXONS MYELIN long dendrite cell body inside CNS short axon SENSORY NEURON short dendrites cell body outside CNS long axon myelinated axon myelinated dendrite & axon white & grey matter AP away from CNS AP towards CNS AP within CNS INTERNEURON MOTOR NEURONStarting from the cell body of the pre-synaptic neuron what is the correct order of structures involved in neuronal communication? Put the items in the correct order from presynaptic to postsynaptic neuron. Axon Synaptic terminal Synaptic vesicles Initial segment Synaptic cleft Postsynaptic receptors Check Answer Previous Next 1 1 1 1 1 1 > Neuron Myelination