You do not control peristalsis voluntarily or have any direct perception of the muscular exertions involved. You simply eat your food, and peristalsis happens. It is involuntary.
It is most definitely involuntary. You do not have to make your stomach contract every time you eat something.
One example of involuntary muscles would be in the digestive system, where muscles in the stomach churn food.
involuntary muscles. Stomach, intestines and your heart are examples.
Involuntary or smooth muscle is found in the stomach.
The stomach is made of smooth involuntary muscles.
heart, stomach, intestines
The muscles of the digestive system are smooth muscles.
It is actually four involuntary muscles. The longitudinal layer, circular layer and oblique layer of the muscularis externa and the pyloric sphincter
The muscles used for speech, chewing and swallowing are in a sense both voluntary and involuntary muscles for we use them both consciously and reflexly. However, the term voluntary muscle usually refers to the striated skeletal muscles as opposed to the smooth muscles of the interior organs (like the stomach or intestines).
The role of non-striated muscles in the stomach is to churn foods for digestion. Non-striated muscles are smooth and have involuntary movement.
If by involuntary you mean acting of its own accord, the organ the lungs act without you controlling them, even when you hold your breath eventually you will breathe of your own accord. The stomach and intestines are involuntary muscles.
smooth