👉 Cordiform is a term used in medicine to describe an organ that is located at the base of the neck, specifically on the side of the trapezius muscle. It is also known as the subcostal nerve or subcostal muscle. The term "cordiform" comes from the Latin word for "cords," which refers to the structure of the cord. In medical terms, a cordiform organ is usually referred to as a "submandibular gland." This gland