Body systems

"People need to breathe to stay alive. This title explores how the lungs pull in air in order to send oxygen into the circulatory system"--Provided by publisher.

"A central control system keeps every part of the body running. This title explores key parts of this control system, such as the brain and spinal cord, and how they help the body function"--Provided by publisher.

"The body needs oxygen to survive. This title explores how the heart and blood vessels carry oxygen through the body"--Provided by publisher.

"Bones allow the body to hold its shape. This title explores what bones are made of and the many roles they have in the body"--Provided by publisher.

"The body needs muscles in order to move. This title explores the different kinds of muscles and how they work"--Provided by publisher.

"The body needs to defend itself from invaders such as viruses and bacteria. This title explores how cells in the body identify and attack these invaders to keep the body healthy"--Provided by publisher.

"The body needs nutrients to survive. This title explores how organs and other parts of the body break down food into nutrients the body can use"--Provided by publisher.

"Muscular System guides readers through the fascinating inner workings of the human body. The human body contains several complex systems that work closely together to support life and allow the body to function properly. Muscular System explores the characteristics and interactions of this system, its makeup, and its importance"--Provided by publisher.

An introduction to the human digestive system.

An introduction to the body's circulatory system.