the rounded portion of the brain, directly behind the cerebrum in birds and mammals, that serves mainly to coordinate movement, posture, and balance. [1555â65; < Latin: brain, diminutive of cerebrum (for formation see castle)] cer`eâ¢belâ²lar, adj.
A pulled muscle is a painful injury that is caused when muscle fibers become torn. These injuries are usually caused by engaging in physical activity without properly warming up first. They can also occur when a person who is not in shape does something that is strenuous to the muscles.
A muscle strain happens when the fibres in the muscle get stretched or torn. This usually happens during strenuous sports, such as sprinting or playing football, when the muscles get stretched beyond their normal limits or have to shorten too fast. This is also called a muscle pull, pulled muscle or muscle tear. Although it is a risk while playing sport, muscle strains can happen when lifting heavy objects or during daily home or work tasks. Muscles at risk of strains include the hamstrings, quadriceps, calf or lumbar muscles in the lower back.