Arteries in general have the thickest layer of muscle and elastic, in order to cope with the high pressure. To be more specific, the aorta (the largest artery in the body) has the largest layer, because it is dealing with very high pressure, greater than that in any other blood vessel.
Smooth muscle contains no striations whereas cardiac and skeletal muscles are striated.
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Myometrium (myo as in muscle)
The smooth muscle found in the muscularis layer of the intestines is found in layers.
Tunica media
The walls of all the arteries are made up of smooth muscle cells.
Tunica Media
Most of the organs contain smooth muscle. The exception is the heart, which contains cardiac muscle.
In visceral organs: for example, the stomach, urinary bladder, small intestines. Smooth muscle cells are also found in arteries and arterioles
The connective tissue that contains spindle-shaped cells is called smooth muscle tissue. These cells are found in the walls of hollow organs such as the stomach, intestines, and blood vessels, where they are responsible for involuntary movements.
The heart contains cardiac muscle. This muscle is involuntary, like smooth muscle, but is made up of different types of cells from food muscle.
Skeletal muscles contain elongated muscle fibers arranged in sheets and have multiple nuclei. Smooth muscles and cardiac muscles also have elongated cells, but they are not arranged in sheets and do not have multiple nuclei in each cell.