What does the prefix "Kyph-" indicate in medical terminology?

The prefix "Kyph-" is derived from the Greek word "kyphos," which means hump or curvature. In medical terminology, this prefix specifically refers to an abnormal curvature of the spine that results in a humped or rounded back, a condition known as kyphosis. This condition is often associated with aging, certain diseases, or poorly developed muscles. Understanding this prefix can help in recognizing and describing conditions related to spinal deformities.

The other options do not accurately convey the meaning associated with "Kyph-." For instance, "Flat back" would relate to a terminal extension of the spine that lacks curvature, while "Swayback" refers to another specific spinal curvature called lordosis. "Stiffness" does not relate to the spinal curvature context at all but rather indicates a lack of flexibility, which is unrelated to kyphosis specifically. Thus, "humpback" is the only option that directly ties back to the definition of the prefix "Kyph-."