Answer: Bundles
Step-by-step explanation:
The smooth muscle cells are small. These cells are spindle in shape and they do not exhibit striations. They appear in the form of bundles of thin and thick filaments.
The smooth muscles are involuntary muscles. The cells of these muscles have nucleus that is located in the center. These muscles contract automatically and slowly.
On the basis of the above description, the description of the smooth muscles can be related to the bundles.
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