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

question 46

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

---

Definitions:

Granulocytes

A type of white blood cell characterized by the presence of granules in their cytoplasm, playing a crucial role in the immune response.

Neutrophils

A type of white blood cell that plays a key role in defending the body against infections by engulfing and destroying pathogens.

Basophils

A type of white blood cell involved in the body's immune response, particularly in allergic reactions and inflammation.

Hemoglobin

A molecule found in red blood cells responsible for transporting oxygen from the lungs to various tissues throughout the body and conveying carbon dioxide from those tissues back to the lungs.