Variability
The shape and form of the ligament have been found in humans cadavers to vary from a rounded cord to a flat membrane. Further, it is not found in all humans being variably found to be absent in half of arms, and a third or 15% of people. It is found in most primates though not in the family of New World monkeys that includes spider and woolly monkeys called atelines.
Read more about this topic: Oblique Cord
Famous quotes containing the word variability:
“The grand points in human nature are the same to-day they were a thousand years ago. The only variability in them is in expression, not in feature.”
—Herman Melville (1819–1891)