Which would most likely result in a long-term injury?
jumping off a wall.
swimming in designated areas
playing in a controlled environment
wearing a new helmet when bicycle riding

A correct answer is an option- jumping off the wall.

Explanation:

Long term injury can occur due to anything that is not safe and not done in a proper way such as jumping off the wall is not safe and can cause brain, limb or another type of injury.

Another option except jumping off the wall is safe as performed in a controlled environment and designated area with proper gear.

Thus, the correct answer is - jumping off the wall.

the oblique cord is a ligament between the ulnar and radius bones in the lower arm near the elbow. it takes the form of a small, flattened band, extending downward and lateralward, from the lateral side of the ulnar tuberosity at the base of the coronoid process to the radius a little below the radial tuberosity.

obviously, the latter.