People with urge incontinence tend to have to pass urine frequently; sometimes having to get up to go to the toilet during the night. Bladder muscles can activate involuntarily because of damage to the nerves of the bladder, the nervous system, or to the muscles themselves.
The muscular system is made up of tissues that work with the skeletal system to control movement of the body. Some musclesâlike the ones in your arms and legsâare voluntary, meaning that you decide when to move them. Other muscles, like the ones in your stomach, heart, intestines and other organs, are involuntary.
1 These nerves control the involuntary or partially voluntary activities of your body, including heart rate, blood pressure, digestion and temperature regulation. 2  Motor nerves. 3  These nerves control your movements and actions by passing information from your brain and spinal cord to your muscles. These nerves control the involuntary or partially voluntary activities of your body, including heart rate, blood pressure, digestion and temperature regulation. 2  Motor nerves. 3  These nerves control your movements and actions by passing information from your brain and spinal cord to your muscles.