Now, single unit smooth muscles are found in places like the uterus. Why well because when the woman is given birth the uterus has to contract as a single unit and that's why all the smooth muscles are arranged into this single unit smooth muscle arrangement. Now other places where we find this type of arrangement is the stomach, the small intestinal bladder, as well as small arteries and veins. Now the last thing I want to mention about this type of arrangement is the fact that just like certain cardiac cells in the heart are capable of displaying a type of activity known as myogenic activity, single unit smooth muscles can also exhibit the myogenic activity. And what that basically means is these cells inside the single unit smooth muscle can basically contract without the input from our nervous system. So even if we don't actually receive a signal from the nervous system, these cells can basically contract independently and that means they're myogenic.