The Vietnamese word "ruột thẳng" refers to the "rectum" in English. The rectum is the final section of the large intestine, which connects to the anus. It plays a crucial role in the digestive system, as it stores feces until they are ready to be expelled from the body.
In medical contexts, "ruột thẳng" might be discussed in relation to conditions such as rectal bleeding, rectal cancer, or procedures like a rectal examination.
While "ruột thẳng" specifically refers to the rectum, "ruột" on its own can also refer to the intestines more generally. In some contexts, "ruột" can be used metaphorically to speak about the inner part of something, like "ruột gan" which means "innards" or "guts."