9781422282533

WORDS TO UNDERSTAND

anabolic: the act of converting chemicals into life-sustaining compounds in the human body. dysmorphia: a mental illness in which you cannot stop thinking about your appearance. hemoglobin: a protein in red blood cells that is used to transport oxygen throughout the body. synthesize: to combine different chemical components into a new substance. testes: male reproductive glands that produce sperm and male sex hormones. testosterone: a hormone associated with male sex characteristics such as facial hair. transfusion: the transfer of whole blood from a healthy person into the bloodstream of another.