What are you trying to find? That is a pedigree
<span>a foot or more in length, and each cell contains hundreds of nuclei</span>
Medical Definition<span> of </span>protist<span>. : any of a diverse taxonomic group and especially a kingdom </span>
Explanation:
Smooth muscle can be found in the walls of hollow organs and passageways, they can contract and they have fibers of actin and myosin tuning though it arranged in an staircase form.
In the images I added you can see how smooth muscle looks when observed in a microscope, wider in the middle and elongated at the ends, and the staircase arrangement.
I hope you find this information useful and interesting! Good luck!