What is the medical term for the iris in anatomy?

The medical term for the iris in anatomy is represented by the root "ir/o." This term specifically refers to the colored part of the eye that surrounds the pupil and is crucial for regulating the amount of light that enters the eye. The prefix "ir/o" helps in constructing various medical terms related to the iris, such as iritis (inflammation of the iris) and iridectomy (surgical removal of part of the iris).

The other terms provided do not relate to the iris. "Isch/i" is associated with ischemia, which refers to a reduction in blood flow to tissues. "Kal/i" pertains to potassium, often mentioned in discussions of electrolytes. "Jejun/o" refers to the jejunum, a part of the small intestine involved in digestion and nutrient absorption. Understanding these distinctions is vital for properly interpreting medical terminology related to different body systems.