About this video
The doctors on Operation Ouch show you what happens when blood has lots of oxygen! They also visit a special collection of body parts and go on a ride with an ambulance team.
🧠 Quiz & Trivia
Test your knowledge after watching!
Q1 What did Reese do that caused his injuries?
Answer: He fell off his bike while riding down a steep slope.
Q2 Where does the swelling come from after an injury?
Answer: Chemicals released by your body cause blood vessels to widen, letting more blood and infection-fighting cells reach the injured area.
Q3 What did Reese need help with after his accident?
Answer: He needed help eating because his lip was swollen.
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