Answer:
Urinary bladder.
Step-by-step explanation:
The urinary bladder, uterus, stomach and intestines are the regions in the body where smooth muscles are found. Striated muscles are found in the walls of the heart. These muscles are involuntary means we can't control it, it works itself without the will of the humans. Cardiac muscles are considered striated muscles because of the presence of repeating bands which forms the structure of the cardiac wall.