the legs
normally your hair, mostly every part of your body.
Liver.
the lungs
The eyes.
Hepatitis affects the liver in the body.
The pituitary gland
The brain.
That would be the knee.
The brain it effects mostly.
The central nervous system including the brain.
It affects the body's production of fibrillin, which is a protein that is an important part of connective tissue.
to the leg its just small scratch