Figure 40-4 Use the Figure to Answer the Corresponding Question(s)

question 30

Multiple Choice

Figure 40-4 Use the figure to answer the corresponding question(s) . Refer to the accompanying figure. An action potential spreads and triggers Ca²⁺ release through the structure labeled as:

• A) 2
• B) 3
• C) 4
• D) 5
• E) 6

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