John was at a pool party. Some of the people had a little toomuch to drink and a fight broke out. John was hit in the head witha strange object and temporarily lost consciousness. We he regainedconsciousness, he was lying supine on the ground and someone wasputting a compress over his wound.

John complained that his vision was blurry so he quickly removedthe compress from his head and jumped up. We he stood up, he becamedizzy and fell to the ground again. Now he was in more pain becausehe hit his head in the exact same spot when he fell. This time, thewound on his head opened up even more and blood started to pourdown his face. John became unconscious again and the ambulancerushed him to the hospital.

Based on the above scenario, answer the following questions?

1. Why did John become unconscious?

2. Why do you think his vision became blurry?

3. The best position for John is to lay down on the ground.Explain why this is the best position as it relates to bloodflow.

4. Why did the person put a compress on his wound?

5. Name 3 blood vessels that are located in his head.

6. If the object had hit John's neck causing a deep lacerationin his neck, explain why a deep wound to the neck can be lifethreatening as it relates to blood flow.