One hundred trillion cells, more than 600 muscles, and over 200
bones--these are parts of the twelve major systems that make up the
human body. Technological developments have given us a detailed
glimpse within our bodies and led to a greater understanding of how
we function. Starting with the integumentary system (that's
your skin, nails, and hair) and finishing with the reproductive
system, the human body covers everything about you--from the
outside to the inside. Award-winning science writer Seymour Simon
has teamed up with the Smithsonian Institution on this new book
about the greatest wonder of the world: the human body.
