the.com/kneejoint
the most complicated hinge in your body, and it knew it from birth.
means The hinge joint where the thighbone meets the shinbone, letting your leg bend, straighten, and bear your weight.
from A plain compound of two old Germanic body-words: 'knee' (Old English 'cnēow,' a cousin of Latin 'genu' and Greek 'gony,' all tracing back to a shared Proto-Indo-European root for the joint) and 'joint' (from Old French 'jointe,' from Latin 'iungere,' to join — the same family that gives us 'junction' and 'yoke'). So the name simply says what it is: the place where the leg is joined.
- three bones
- Femur, tibia, and kneecap meet in one summit
- floating bone
- Kneecap is the body's largest sesamoid bone
- no socket
- Held together by ligaments, not bony cradling
- common casualty
- ACL tears plague athletes and aging joints alike
- late bloomer
- Kneecaps fully ossify only by adolescence
for instance
acl tear — tom brady 2008 nfl season, ended his patriots streak
meniscus cartilage damage — derrick rose 2012 nba playoffs, career-altering injury