This line count includes blank lines between paragraphs as well as lines with just a single word. At one extreme you get large print books with 250 words on the page. Academic books might put 600 words on a page with works of reference squeezing in 1000 words. A good working average is 400.
The ACL is located in the center of the knee joint where it runs from the backside of the femur (thighbone) to connect to the front of tibia (shinbone). The ACL runs through a special notch in the femur called the intercondylar notch and attaches to a special area of the tibia called the tibial spine.
It's the tough piece of tissue that keeps the knee from bending sideways when you plant your foot and pivot. Nobody is exactly sure of the best way to treat a torn ACL. Yet every year, at least 200,000 Americans undergo ACL reconstruction, in which the ACL is restored with tendon grafts.