Question 61 ptsThe slow after-hyperpolarisations (sAHPs) in some spinal neurons of the lamprey:Group of answer choicescontrol the speed of swimmingcontrol the direction of swimmingcontrol the alternation of contractions between the two sidescontrol the sensory inputscontrol the propagation of excitation along the spinal cord
Question
Question 61 ptsThe slow after-hyperpolarisations (sAHPs) in some spinal neurons of the lamprey:Group of answer choicescontrol the speed of swimmingcontrol the direction of swimmingcontrol the alternation of contractions between the two sidescontrol the sensory inputscontrol the propagation of excitation along the spinal cord
Solution
The slow after-hyperpolarisations (sAHPs) in some spinal neurons of the lamprey control the alternation of contractions between the two sides.
Here's a step-by-step explanation:
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The lamprey, like many aquatic animals, swims by producing rhythmic undulations of its body. This is achieved by alternating contractions of the muscles on the two sides of its body.
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The alternation of contractions is controlled by a network of spinal neurons. These neurons generate rhythmic bursts of activity, which are transmitted to the muscles and cause them to contract.
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The slow after-hyperpolarisations (sAHPs) are a key part of this process. After a neuron fires, it undergoes a period of hyperpolarisation, during which it is less likely to fire again. This helps to ensure that the neuron fires in a rhythmic pattern.
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The sAHPs in the spinal neurons of the lamprey are particularly slow, which means that they have a long-lasting effect on the neuron's activity. This helps to control the timing of the alternation of contractions between the two sides of the body, ensuring that the lamprey swims in a smooth
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