Fill in the blanks with the suitable words____filaments are thinner as compared to the _____ filaments, hence are commonly called ______ and filaments respectively.

Answer

**Step-by-Step Text Solution:**

1. **Identify the Thinner Filaments:** The first part of the statement mentions that one type of filament is thinner than the other. In muscle fibers, the thinner filaments are known as **actin filaments**.

2. **Identify the Thicker Filaments:** The second part of the statement refers to the thicker filaments. In muscle fibers, these are known as **myosin filaments**.

3. **Common Names of the Filaments:** The actin filaments, being thinner, are commonly referred to as **thin filaments**. Conversely, the myosin filaments, being thicker, are referred to as **thick filaments**.

4. **Complete the Sentence:** Now, we can fill in the blanks:
- Actin filaments are thinner as compared to the myosin filaments, hence are commonly called thin and thick filaments respectively.

**Final Answer:**
Actin filaments are thinner as compared to the myosin filaments, hence are commonly called thin and thick filaments respectively.

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