Trivia Question 15 Answer
The answer refers to the uncovertebral joints (or Luschka) joints, described as such by Luschka in 1858. The are small synovial joints typically located at the C3-C7 levels, often contributing to neural foraminal narrowing when hypertrophied.
Reference
Boreadis AG, Gershon-Cohen J. Luschka joints of the cervical spine. Radiology 1956;66(2)