non-striated muscle
nonstriated muscle

Smooth muscle is an involuntary non-striated muscle.

Smooth muscle is a type of non-striated muscle and unlike striated muscle, contraction of smooth muscle is not under conscious control.

'Smooth muscle' is an involuntary non-striated muscle, found within the tunica media layer of large and small arteries and veins, the urinary bladder, uterus, male and female reproductive tracts, gastrointestinal tract, respiratory tract, the ciliary muscle, and iris of the eye.