Respect appropriately to each question posed below. Insert your responses in the

Question

Respect appropriately to each question posed below. Insert your responses in the corresponding numbered blanks to the right. Name three types of stimuli that resulted in action potential generation in the acetic nerve of the frog. Which of the stimuli resulted in the most effective nerve stimulation? Which of the stimuli employed in that experiment might represent types of stimuli to which nerves in the human body are subjected? What is the usual mode of stimulus transfer in neutrons-to-neutron retractions? Since the action potentials themselves were not visualized with an oscilloscope during this initial set of experiments. How did your recognize that impulses were being transmitted? How did the site of action of either and tambourine differ? In the curve experiment. Why was one of the frog's legs ligated? Explain why the amplitude of the compound action potential recorded from the frog sciatic nerve increase when the voltage of the stimulus was increased above the threshold value. What was the effect of cold temperature (flooding the nerve with iced Ringer's solution) on the functioning of the sciatic nerve tested? When the nerve was reversed in position, was the impulse conducted in the opposite direction? How can this result be reconciled with the concept of one-way conduction in neurons?

Explanation / Answer

Ques-1 to 3:

Sciatic Nerve: The nerve innervates with the entire lower limb. This nerve is longest and thickest nerve that possess a common sheath and with common fibular and tibular nerves.

The three types of stimuli that resulted in action potential generation in the sciatic nerve of the frog:

1. Electrical

2. Heat

3. Pressure

The changes in the electrical potential is mainly via electrical, chemical and mechanical & pressure base based stimulus (pinching) causes graded action potential in the frog sciatic nerve

Ques-4: which of the stimuli resulted in the most effective nerve stimulation?

Any strong stimuli do not because the change effective amplitude of nerve stimulation therefore, amplitude of the action potential do not increase

Ques-5: Which of the stimuli employed in that experiment might represent types of stimuli to which nerves in the human body are subjected?

Answer: Electrical stimuli in the neurons often cause changes in action potential with respect to neurons and muscle cells of human beings

Ques-6: What is the mode of stimulus transfer in neuron to neuron interaction

Graded response based on all-or-none principle and the mode of stimulus transfer in neuron to neuron is "saltatory (jumping). The impulse conduction and initiation is mainly based on spatial & temporal summation

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