In this exercise, please imagine yourself in an hypothetical classroom. You are
ID: 3489474 • Letter: I
Question
In this exercise, please imagine yourself in an hypothetical classroom. You are a teaching assistant and the instructor has asked you to explain to the students the withdrawal reflex shown in Figure 11. You have decided to use the students to role play parts of the withdrawal reflex. You make name tags and give them to the following students: Paul – Pain stimulus Sarah – Sensory Neuron Eric – Excitatory Interneuron Mike – Motor Neuron Murph – Muscle Ally – Axon from Neuron in the Brain Ian – Inhibitory Interneuron Please describe, briefly and clearly, how you would direct each student to role play their part in the withdrawal reflex and the intervention of the brain in the reflex. Let’s assume that a tap on the shoulder is the communication between each part of the reflex. I’ll let you figure out how inhibition is communicated. It might be most efficient if you have Paul, Sarah, Eric, Mike and Murph standing in a circle at the front of the classroom representing the reflex. Ally and Ian could be standing inside the circle.
This interneuron excites motor neuron, causing muscular contraction Neuron n brain Brain Axon of This muscle causes withdrawal from source of pain Motor neuron Axon from neuron in brain in brain Axon of sensory neuron (pain) Spinal cord Cross section of spinal cord This interneuron inhibits motor neuron, preventing FIGURE 2.11 The Role of Inhibition. Inhibitory signals arising from the brain can prevent the withdrawal reflex from causing the person to drop the casserole.Explanation / Answer
The inhibition response occurs due to reflex generation in the brain of persons after touching something hot which has less intensity and temperature than the excitatory and activation response reflex observed after touching a utensil which has a very high temperature leading to withdrawal symptoms in muscles with stimulus reaching the brain through spinal nerves.Further inhibition of relfex during experiments is also received by introducing a drug in experiments like d-tubocurarine.The amplitude and intensity of reflex generated along with action potential generation in neurons can be analysed by oscilloscope with peak readings.
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