A head injury, also known as a concussion, is simply broken blood vessels that result in bleeding in the brain or the area around the brain. This can be very minor where the person is not aware of an injury or it can be so severe that the person dies within minutes.

First aiders need to be aware of shaken baby syndrome (SBS). This situation happens when people can't control their anger or frustration when trying to calm a crying and upset baby. The offender mistakenly believes that shaking will quiet the baby.

Follow these steps to stop blood flow, protect the wound from infection, and when necessary, to treat the injured person for shock.

This type of injury affects the spinal column or spinal cord which runs all the way from the upper neck down to the tail bone. This is where all the spinal nerves leave the brain and branch off, on their way down, to the various body parts. The higher up the injury occurs, the more body parts that will be affected. Motor vehicle crashes cause half of all injuries to the head and spine.

The musculoskeletal system is made of bones that form the skeleton along with muscles, tendons, ligaments, and joints. These things give the body shape, form, and stability. The bones and muscles work together to make body parts move.

A burn is damage to the skin or underlying tissue usually caused by heat, but also by chemicals, electricity, or radiation such as with a sunburn. There are 3 levels of severity: first, second, and third. With third degree burns being the most serious.