Respiratory system: intake and exhaust
Using the analogy of an automobile's system of fuel intake and exhaust, this program explores the makeup and functions of the respiratory system. Topics include the processes of respiration; the organs involved in respiration; why cells need oxygen;...
Brain and nervous system: your information superhighway
This program explores the brain and nervous system, using the analogy of computers and the Internet. Topics discussed include electrical impulses and how nerve messages travel; parts of the brain and their functions; how the brain and spinal cord ar...
Muscular system at work: the inner athlete
This program looks at the many roles played by muscle and skin in our everyday lives. Topics include muscles and movement; cardiac, smooth, and skeletal muscle; detailed structure of a skeletal muscle; types of muscle contraction and movement; muscl...