Control of the Sphincters

smooth muscle is uni nucleated, which means there's just one nucleus per cell. Each cell has a single nucleus, which contains its genetic material. This muscle contracts involuntarily, so you have no control over the urine travelling from her kidneys down into orill be careful. The anus is smooth muscle, and it contractss,. put your reckum in thirds, excuse me, just like yousophagus, gus a distal.