Where are the cell bodies of the neurons that cause NMDA receptor activation to the conditional pacemakers in the spinal circuits of the intact Lamprey during swimmingGroup of answer choicesIn the visual nucleiin the ipsilateral spinal cordIn the brain stemin the contralateral spinal cordIn the vestibular nuclei PreviousNext

NMDA receptor agonists depolarise the lamprey spinal neurons by:Group of answer choicesopening channels permeable to sodium and calcium ionsopening chloride channelsclosing all calcium channelsclosing slow serotonin channelsopening dopamine channels

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 PreviousNext

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

Question 81 ptsThe sensory neurons called “edge cells” in the lamprey are best described as being located:Group of answer choicesin the brain stemin swimming muscleson the surface of the spinal cordinside the spinal cordon the surface of the body

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