What is the medical term root for blood?

The medical term root for blood is "hem/o." This prefix originates from the Greek word "haima," meaning blood, and is commonly used in various medical terms related to blood. For instance, "hemoglobin" refers to the protein in red blood cells that carries oxygen, while "hemorrhage" indicates excessive bleeding. The root "hem/o" helps to convey information related to blood in a variety of medical contexts, making it a fundamental component in medical terminology.

The other roots, such as "tox/o," relate to toxins or poisons, while "isos" pertains to equal or same. "Megaly" signifies enlargement of an organ or body part. Thus, these roots do not connect to the fundamental concept of blood, clarifying why "hem/o" is the correct choice.