What term is used to describe air or gas passed through the anus?

The term that describes air or gas passed through the anus is "flatus." This term is derived from Latin and specifically refers to the gas that is released during the digestive process. Flatus occurs when the intestines produce gas as a byproduct of digestion, fermentation, or the intake of certain foods that are difficult for the body to break down.

In medical settings and discussions, "flatus" is often used to provide a more precise terminology regarding gas in the gastrointestinal tract. This is particularly important in nursing and patient care environments, where clear communication about gastrointestinal health is crucial. While "flatulence" also refers to the act of passing gas, it is more of a general term, whereas "flatus" specifically denotes the gas itself. Understanding these terms is essential for effective patient interactions and can aid in identifying related health issues. The other options, such as belching and gurgling, refer to different processes or sounds associated with gas in the digestive system but do not pertain to gas passing from the rectum.