Why smooth muscles are called non-striated muscles?

Explanation

### Step-by-Step Solution:

1. **Definition of Smooth Muscles**: Smooth muscles are one of the three types of muscle tissues found in the body, the other two being skeletal and cardiac muscles.

2. **Characteristics of Smooth Muscles**: Unlike skeletal muscles, smooth muscles do not have a striated appearance. They are composed of elongated cells that taper at both ends.

3. **Non-Striated Appearance**: The term "non-striated" refers to the lack of visible stripes or striations when viewed under a microscope. This is due to the arrangement of actin and myosin filaments in smooth muscle cells, which is different from that in skeletal muscles.

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