Figure 10-2 Muscle Contractions

question 32

Multiple Choice

Figure 10-2 Muscle Contractions
Use Figure 10-2 to answer the following question:
-To produce a contraction similar to the one in graph (b) ,the muscle

• A)must be stimulated to the point of fatigue.
• B)must be stimulated again before it has relaxed from the previous stimulation.
• C)is excited by a stimulus of increasing intensity.
• D)is caused to produce isolated twitches.
• E)gradually warms up.