What is the meaning of the combining form 'dors/o'?

The combining form 'dors/o' refers specifically to the 'back' of the body. In medical terminology, it derives from the Latin word "dorsum," which translates to 'back.' This term is frequently used in anatomical terminology and can be seen in various words, such as 'dorsal,' which pertains to the back aspect of the body or an organ. Understanding this combining form is essential for accurately describing anatomical locations, especially in relation to other body structures.

The remaining options do not align with the definition of 'dors/o.' The term for 'thigh' would be 'femor/o,' referring to the femur or thigh bone. The word for 'buttock' is 'glute/o,' related to the gluteal muscles. Finally, 'flank' is denoted by the term 'lumb/o,' which is used to describe the side of the body between the ribcage and pelvis. Each of these terms has its own specific combining form, distinct from 'dors/o,' which reinforces the clarification that 'dors/o' specifically means 'back.'