A15 year old male suffered diffuse brain injury after wrecking an atv. he had momentary confusion and retrograde amnesia after 5-10 minutes. his injury could be categorized as

The brain is made of soft tissue. It's cushioned by spinal fluid and encased in the protective shell of the skull. When you sustain a concussion, the impact can jolt your brain. Sometimes, it literally causes it to move around in your head. Traumatic brain injuries can cause bruising, damage to the blood vessels, and injury to the nerves.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;