A Volleyball Player Depends on the Gastrocnemius Muscles for Plantar

question 114

Multiple Choice

A volleyball player depends on the gastrocnemius muscles for plantar flexion, whereas a marathon runner depends more on the soleus muscles for the same action. What characteristic of the soleus muscles makes this so?

• A) They have smaller mitochondria.
• B) They have more glycogen in them.
• C) They don't have as many blood capillaries per gram of tissue.
• D) They make more use of aerobic respiration.
• E) They break ATP down to ADP and P_i faster.

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