This program examines the chemical structure of food and the human body⁰́₉s ability to convert food into fuel and raw materials. Major and minor nutrients are defined, catabolism and anabolism are contrasted, and the function of the digestive tract at the cellular level is scrutinized. The sequence of physical and chemical processes that facilitate digestion is also illustrated, spotlighting each constituent anatomical system: mouth/esophagus,...

After an introductory segment on cell characteristics, this program discusses the way human body cells function and combine into the structures that sustain life. Topics include membrane permeability and the processes of passive and active transport; cytoplasm, with its cytosol, organelles, and inclusions; the constituent parts of the nucleus and the stages and processes of the cell cycle; the four basic tissue types; and the skin, the body's largest...

This program discusses the development, organization, and functions of the nervous system and the input organs that stimulate it. Beginning with an introductory overview of neural anatomy, the video outlines the organization of the central and peripheral nervous systems and the processes of sensation, transduction, and perception. In addition, the senses of vision, hearing, taste, smell, and equilibrium are analyzed, as well as sensitivities to temperature,...