Cardiac muscle and smooth muscle function involuntarily-beyond our conscious control. There is smooth muscle in organs of the digestive, respiratory, circulatory and urinogenital systems, while...
There are several actions made by involuntary muscles such as the pumping of the heart, the expanding and contracting of blood vessels moving blood throughout the body and shivering which are...
The classic definition for an involuntary action would be a reflex. For example the doctor taps your knee and a monosynaptic (nerve to spinal cord and back again to the knee) contracts the muscles to...