Vena Rectalis is a medical term that refers to the veins located in the rectum. However, there are several synonyms that can be used to describe this particular vein. For instance, it can also be referred to as the rectal vein or the veins of the rectum. Some other synonyms of Vena Rectalis include the hemorrhoidal vein, the anal vein, the superior rectal vein, and the inferior rectal vein. These synonyms are used to describe different aspects of the vein, such as its location in the body, its purpose, and its size. Regardless of which term is used, they all refer to the same blood vessel in the rectum.