Final answer:
Involuntary muscles include cardiac and smooth muscles. Cardiac muscles pump blood and are located in the heart, while smooth muscles are found in organs and assist in digestion and other bodily functions.
Step-by-step explanation:
There are two involuntary muscles types: cardiac and smooth.
Cardiac muscles are found in the heart and contract automatically to pump blood throughout the body. They are responsible for the heartbeat and are controlled by the autonomic nervous system.
Smooth muscles are found in organs and structures such as the digestive system, blood vessels, and bladder. They work involuntarily to regulate various processes in the body, like digestion and blood flow. You cannot consciously control them.