6. If the action potentials shown in the diagram below occur sequentially and in close temporalproximity, what will be the final result in cell D? In this notation,< indicates an excitatoryan inhibitory synapse. Focus on overall effects – excitation andinhibition – don't worry about quantifying responses here. (Hint: you may want to identify what ishappening at each cell and then how that will be affected by the activation of the previous cell)synapse and indicatesAboveAbovethresholdstimulationAbovethresholdstimulationthresholdstimulationD

Threshold of Stimulation can be defined as the physiology of nerve and muscle cells, the minimum…

Answered: 6. If the action potentials shown in…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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neurotransmitters 1 In what way may drugs be used to affect neurotransmitters? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. A drug may prevent the binding of a neurotransmitterto a receptor. b, A drug may increase the amount of neurotransmitter released. A drug may prevent the release of aneurotransmitter, d. A drug may affect the degradation of a neurotransmitter Drugemay affect neurotranemitters usng al of the mechanismslsted. Unanswered
87.
4.3. After the rising phase, which ion channel is responsible for action potential returning to its resting V and why? Na channels, because positive Na* ions are at higher concentration outside the axon than inside, and so they enter the axon and raise V O Na* channels, because positive Na* ions are at higher concentration inside the axon than outside, and so they leave the axon and raise V, m O K* channels, because positive K* ions are at higher concentration outside the axon than inside, and so they enter the axon and raise Vm U K* channels, because positive K* ions are at higher concentration inside the axon than outside, and so they leave the axon and lower Vm
Identifying Neurotransmitters 3) Produces response in postsynaptic cell - Qualifying condition: Molecules evoking same response as neurotransmitters Presynaptic terminal Postsynaptic. dendrite Drug-containing micropipette (753) Apply drug by passing electrical current Stimulate axon Record V Drug application through the micro-pipette Stimulated neurons Change in membrane potential AVm Outcome 1 Outcome 2 Outcome 3 0 -30 mV 15 mV 0 -15 mV -15 mV What is the interpretation of the above results?
Please answer all of these questions below
4. From the list of terms that follow, please label the figure (at least once) below accordingly: ده 35 • Ca ● . ● ● Vesicle Presynaptic membrane postsynaptic membrane ● Synaptic cleft ● Na* ● Voltage-gated channel Ligand-gated channel Neurotransmitter - لها Now, explain in 2-5 sentences how the stimulus is transmitted to another cell.
If the postsynaptic cell's plasma membrane were to become substantially more permeable to Na+, you would expect the membrane potential to [depolarize, hyperpolarize] __________________. You would expect the membrane potential to depolarize if the extracellular K+ concentration were to [increase, decrease] ______________. a.) hyperpolarize, decrease b.) depolarize, decrease c.) depolarize, decrease d.) hyperpolarize, increase
In one to two sentences ... Explain how a neuron can repair itself. What increases the likelihood of repair; what decreases the likelihood of repair? If repair is not possible, what other options are possible to innervate the effector organ?
Fill in the diagram, your illustration should demonstrate for each phase of the AP: 1. The relative concentration of K and Na 2. The relative voltage across the membrane 3. Any movement across the membrane of K and NA 4. The three kinds of channels in the membrane, and their state (open or closed) 5. Finally, indicate on the graph of the AP which phases correspond to hyper- polarization and which phases correspond to de- polarization Outside Outside Inside Inside Outside Inside Outside 1 Outside Inside Inside
a. a decrease in the frequency of process A O b. a decrease in the intensity of process A an increase in the intensity of process A d. an increase in the frequency of process A Use the following information to answer the next question O c. Membrane potential (mv) -55 Action potential of a neuron in respo stimulus of -55 mV D A B Compared to the diagram above, an electrochemical stimulus of -20 mV will result in Time
Indicate the specific events that are occurring at 1,2,3 and 4. B. At which area of the graph are sodium ions rapidly entering the neuron. C. At which area of the graph are potassium ions rapidly leaving the neuron? D. At which area of the graph is the sodium ion concentration higher outside than inside the neuron? Explain how a membrane that is said to be "resting" can continually use energy to transport ions. Action Potential Membrane potential (mV) +20+ 0- 20- -40- -60- -80 0 1 m 6 Time (milliseconds)
Have Identify the following as properties of electrical synapses, chemical synapses, or both..

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