A student is doing a physiology experiment on the gastrocnemius muscle of a frog. He is stimulating the muscle and observing the amount of tension generated. If he stimulates the muscle with the highest frequency possible, which of the following will he observe?Multiple ChoiceComplete tetanusTreppeA twitchIncomplete tetanus
Question
A student is doing a physiology experiment on the gastrocnemius muscle of a frog. He is stimulating the muscle and observing the amount of tension generated. If he stimulates the muscle with the highest frequency possible, which of the following will he observe?Multiple ChoiceComplete tetanusTreppeA twitchIncomplete tetanus
Solution
The student will observe Complete tetanus.
Here's why:
When a muscle is stimulated with the highest frequency possible, it doesn't have time to relax between stimuli. This results in a sustained contraction known as complete tetanus. In this state, the muscle remains contracted without relaxing, and the tension generated is at its maximum.
Treppe, a twitch, and incomplete tetanus are all observed when the muscle is stimulated at lower frequencies and has time to partially or fully relax between stimuli.
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