One of the ligaments in the knee, the ACL crosses from bottom of the femur (the thigh bone) to the top of the tibia (the main bone in the lower leg). ACL injuries can occur in a number of situations including sports, such as football.
ANTERIOR CRUCIATE LIGAMENT (ACL)
Meaning of ANTERIOR CRUCIATE LIGAMENT (ACL) in English
English dictionary of medicine. Английский словарь медицины. 2012