What anatomical part does 'ischi/o' refer to?

The term 'ischi/o' pertains specifically to the ischium, which is a part of the pelvis. The ischium is one of the three bones that make up each half of the pelvis, along with the ilium and pubis. It is positioned at the lower and back part of the hip bone and plays a vital role in weight-bearing when sitting. Recognizing medical root terms is essential for interpreting various anatomical terms accurately, as they often provide specific information about the structure or location being referenced.

In this instance, the other options do not relate to the term 'ischi/o' in any anatomical context. Iris refers to the colored part of the eye, jejunum is a segment of the small intestine, and cornea is the clear front part of the eye. Each of these terms pertains to different body systems, thus reinforcing the correctness of the association of 'ischi/o' with the ischium.