Operation Ouch! Hospital Takeover

The doctors reveal what makes you flexible as they test the strength of a tendon.

Ear We Go! The doctors reveal how your eardrum works to enable you to hear.

The doctors reveal how important cartilage is to your body.

The doctors reveal why your body can't survive without oxygen for more than three minutes.

The doctors reveal how amazing your saliva is, and catch up with patients Ruby and Tola.

The doctors reveal the cells in your eyes which help you to see.

The doctors reveal the amazing army of germ fighters that make up your immune system.

Big Burps! The doctors find out why we burp and film Dr Xand burping from the inside.

The doctors reveal the job your pancreas does to keep your blood sugar levels in check.

The doctors reveal the strength of your jaw, and try being hospital ward chefs.