Operation Ouch!

This week, Dr Chris and Dr Xand van Tulleken find a unique way to learn more about the job of an air ambulance pilot, but landing their toy helicopters directly on the patient - a child's action figure - isn't quite what they had in mind.

The doctors reveal why a body cannot survive without oxygen for more than three minutes, and they find out what it is like to be 999 call handlers in Operation Takeover. Dr Xand investigates how Formula One race car technology can help hospitals, and Dr Chris hits the wards in Ouch and About On Call. Meanwhile in Accident and Emergency, one patient comes in after a bike accident and another has fallen on her wrist.

The doctors reveal how amazing your saliva is, and they find out why the hospital's maintenance team work with birds of prey in Operation Takeover. Dr Chris heads to the Emergency Department to find how the doctors know who to treat first, and we catch up with Ouch patients Ruby and Tola. Meanwhile, in Accident and Emergency, one patient arrives by air ambulance after a rugby match and another has a cut on her foot after it was caught in a bike wheel.

The doctors reveal the special cells in your eyes which help you to see out of the corner of your eye and they find out what it takes to be a hospital entertainer in Operation Takeover. Dr Chris heads to a laboratory where scientists are making blood from stem cells, and more medical mysteries are answered in Ouch and About On Call. Meanwhile in Accident and Emergency one patient is brought in by air ambulance after cutting her chest, and another has hit his head on a goal post.

The doctors reveal the amazing army of germ-fighters that make up your immune system, and they find out just how difficult it is to clean a baby's incubator in Operation Takeover. Dr Xand meets Alex who has Autism, and we catch up with Ouch Patients Holly and Haiden in. Meanwhile, in Accident and Emergency, one patient has cut her nose and another has injured his toe.

The doctors find out why we burp and even manage a world first when they film Dr Xand burping from the inside. They also get behind the wheel to discover what it takes to be a good ambulance driver in Operation Takeover. Dr Xand joins the radiology department to find out how they see inside our bodies and Dr Chris is answering medical questions on the wards in Ouch and About On Call. Meanwhile in Accident and Emergency one patient has cut her hand doing arts and crafts, and we meet a familiar face with a dislocated jaw.

The doctors reveal the job your pancreas does to keep your blood sugar levels in check, and they find out what it's like to be the hospital postman in Operation Takeover. Dr Xand investigates how scientists make Bioglass to help doctors mend damaged bones, and we catch up with all four of our patients for one last time. Meanwhile in Accident and Emergency one patient arrives by air ambulance after falling on a spiky fence, and another has come off her bike and cut her chin.

The doctors reveal the amazing strength of your jaw, and they see if they can take the heat when they try their hands at being hospital ward chefs in Operation Takeover. Dr Xand joins the ear, nose and throat department to see how they fix their patients, and Dr Chris hits the wards answering questions for one last time in Ouch and About On Call. Meanwhile, in Accident and Emergency, one patient is treated for an injury to her neck, and another has cut his foot on a tin lid.