Provided video gives and overview of definition of concussion, types of injuries leading to concussion, the pathophysiology behind it and the signs and symptoms associated with it. Timeline: 0:00 - Definition of concussion and direct and indirect types 0:31 - Causes of concussion 0:39 - Translational, rotational and angular injuries 1:10 - Pathophysiology behind concussion 2:35 - Signs and symptoms 3:17 - Treatment