Manufacturing body parts

2. one of the two organs in your lower back that separate waste products from your blood and make urine
4. the operation of transplanting an organ, piece of skin etc.
6. a group of cells that have similar structure and that function together as a unit.
7. a membranous sac in humans and other animals, in which urine is collected for excretion.
9. to use machines to make goods or materials, usually in large numbers or amounts.
10. to separate one person, group, or thing from other people or things.
11. to grow again, or make something grow again.
12. to put something into someone’s body by performing a medical operation.

1. an important new discovery in something you are studying, especially one made after trying for a long time.
3. prevent the backward flow of blood.
5. the regular beat that can be felt, for example at your wrist, as your heart pumps blood around your body.
6. one of the tubes through which blood flows in your body.
8. a doctor who does operations in a hospital.