Intracellular recordings from conditional pacemaker neurons in isolated lamprey spinal cord/brainstem preparations show:Group of answer choicesspontaneous action potentials triggered at resting membrane potentialslow oscillations of membrane potential with superimposed fast action potentialsslow oscillations of membrane potential in the absence of any neural or pharmacological excitation
Question
Intracellular recordings from conditional pacemaker neurons in isolated lamprey spinal cord/brainstem preparations show:Group of answer choicesspontaneous action potentials triggered at resting membrane potentialslow oscillations of membrane potential with superimposed fast action potentialsslow oscillations of membrane potential in the absence of any neural or pharmacological excitation
Solution
The question seems to be incomplete, as there is no specific question asked. However, I can provide a general explanation of the concepts mentioned.
-
"Spontaneous action potentials triggered at resting membrane potential": This refers to the ability of certain neurons, known as pacemaker neurons, to generate action potentials without any external stimulus. These action potentials are triggered when the neuron's membrane potential reaches a certain threshold.
-
"Slow oscillations of membrane potential with superimposed fast action potentials": This refers to a pattern of neuronal activity where the neuron's membrane potential slowly oscillates, or changes, over time. On top of these slow oscillations, fast action potentials (rapid changes in membrane potential) can occur.
-
"Slow oscillations of membrane potential in the absence of any neural or pharmacological excitation": This refers to the ability of certain neurons to exhibit slow oscillations in their membrane potential even in the absence of any external stimuli, such as neural or pharmacological excitation. This is a characteristic of certain types of neurons, including some pacemaker neurons.
Without a specific question, it's hard to provide a more detailed answer. If you could provide more context or a specific question, I would be happy to help further!
Similar Questions
Conditional pacemaker neurons in the lamprey are:Group of answer choicesneurons that are synaptically driven by other pacemaker cellsneurons that have spontaneous activity when they receive inhibitory synaptic inputneurons whose membrane potential oscillates in the presence of glutamateneurons whose membrane potential oscillates when they receive sensory inputneurons whose membrane potential oscillates without any input
Question 71 ptsRelease of endogenous serotonin (5-HT) in the lamprey spinal cord leads to:Group of answer choicespartial inhibition of action potential generation in motor neuronsinhibition of calcium-dependent potassium channels in the conditional pacemaker neuronsstimulation of the calcium-dependent potassium channels in the conditional pacemaker neuronsan increase in the frequency of cyclic oscillations of the spinal locomotor networkinhibition of NMDA-receptors on spinal neurons
Oscillations in the conditional pacemakers in the lamprey spinal cord involve Chloride channels and sodium channels Calcium channels and barium channels Potassium channels and barium channels Sodium channels and calcium channels Potassium channels and chloride channels
Oscillations of spinal neurons that generate the rhythmic movements are due toGroup of answer choicesconditional pacemakers in some interneuronsrhythmic locomotor centre in the midbrainconditional pacemakers in sensory neuronspacemaker potentials in motor neuronsrhythmic synaptic inputs from the cortex PreviousNext
The source of endogenous glutamate that initiates oscillations in the conditional pacemaker neurons of the lamprey spinal cord is:Group of answer choicesmotor neuronsdopamine-releasing neurons in the basal gangliavestibular nucleisensory neuronsneurons projecting from the brain stem
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.