2/6/24, 1:25 PM
PhysioEx Exercise 2 Activity 4
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PhysioEx Lab Report
Exercise 2: Skeletal Muscle Physiology
Activity 4: Tetanus in Isolated Skeletal Muscle
Name: Sophie Vanderkallen
Date: 6 February 2024
Session ID: session-85ddb974-ed1b-8f08-e116-2b78a54fcb2f
Pre-lab Quiz Results
You scored 100% by answering 3 out of 3 questions correctly.
Experiment Results
Predict Question
Stop & Think Questions
Stimulus frequency refers to
You correctly answered: the rate that stimulating voltage pulses are applied to an isolated
whole skeletal muscle.
1
Which of the following distinguishes a state of unfused tetanus from a state of complete
(fused) tetanus?
You correctly answered: Muscle tension increases and decreases during a state of unfused
tetanus.
2
When the stimulus frequency reaches a value beyond which no further increases in force are
generated by the muscle, the muscle has reached its
You correctly answered: maximal tetanic tension.
3
Predict Question: As the stimulus frequency increases further, what will happen to the
muscle tension and twitch appearance with each successive stimulus? Will there be a limit to
this response?
Your answer: As the stimulus frequency increases, the muscle tension generated by each
successive stimulus will increase. There will be a limit to this increase.
1
What begins to happen at around 80 msec?
You did not answer this question.
Correct answer: unfused tetanus develops.
1
