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Zig-zag special thickenings in cardiac m...

Zig-zag special thickenings in cardiac muscles.

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**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks about the zigzag special thickenings found in cardiac muscles. 2. **Identifying the Structure**: The zigzag special thickenings in cardiac muscles are known as **intercalated discs**. 3. **Function of Intercalated Discs**: Intercalated discs play a crucial role in the functioning of cardiac muscles. They are essential for the coordination of heart muscle contractions. ...
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Knowledge Check

  • Cardiac muscle is:

    A
    involuntary
    B
    smooth
    C
    striated
    D
    both (a) and (c)

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