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Description
This program takes a look at the mechanics of the body's internal defense system. The protected environment of the womb is contrasted with the pathogen-laden environment of the post-birth world. Passive immunity is distinguished from the body's active lines of defense: the skin and its secretions, the inflammatory response, phagocytes, and lymphocytes. Case studies involving chicken pox, tetanus, and tuberculosis show different ways the human immune...
Description
Health advocates continuously speak out on the need for physical fitness-but providing the skills to analyze and measure fitness isn't always part of the educational package. This program addresses that crucial dimension of fitness training, guiding viewers through the major components of testing strength, endurance, and other aspects of fitness. Distinguishing between health-related fitness and skill- or performance-related fitness, the video demonstrates...
Description
This concise program-ideal for use as a lecture launcher-summarizes the evolution of medical knowledge in the Western world with numerous drawings, paintings, diagrams, and clips of historical footage. Highlighted moments in the quest for a more thorough understanding of disease and the human body are augmented by capsule case studies and intriguing information on the effects of both the Scientific Revolution and religion on the field of medicine....
Description
This program examines how oxygen and carbon dioxide are transported throughout the body, guided by the brain as it reacts to internal and external stimuli. The process of breathing is modeled by a swimmer, the control of breathing by the brain is analyzed, and oxygen intake by the lungs and transport by red blood cells are discussed. The complementary actions of the circulatory and respiratory systems to meet the body's energy needs are identified,...
5) Homeostasis
Description
This program investigates how the body controls its internal environment. The steady state of the Earth's biosphere is compared to that of the human body. An automated greenhouse and a computerized inventory system demonstrate how negative feedback loops use detection and response to maintain their own balanced states. The regulation of body temperature in response to extreme heat and cold is explored both in a sauna and on a mountain slope. The roles...
Description
This program examines the biological evolution of our internal timekeepers, examining the conflict between the time in our bodies and brains and the time on our wrists. It looks at the fish with the most accurate pacemaker known to science; shows how cell cycles are being tracked and biological clocks transplanted; reveals the novel ways in which human biological clocks are being reset; and explains why Greenwich is where time starts, how conversations...
Description
If great runners are born, not made, what roles do training and technology play? Will cutting-edge engineering and chemistry create vehicles that move faster than previously thought possible? This program presents a quest to understand speed in all its manifestations. Viewers get a look at the North American Eagle, an automobile that's more fighter jet than car, designed to challenge the world land speed record. At the Walthamstow dog track in east...
Description
What gives jet airplanes, which have been known to reach the size of office buildings, the ability to leave the ground? It isn't rocket science-although that's also covered in this high-energy program on the complexity of flight. For basic training in aerodynamic principles, viewers take an exhilarating hang-glider ride and venture inside a high-tech wind tunnel used by Olympic ski jumpers. Next up: the launch of a mammoth homemade rocket, the centrifuge...
Description
This program concentrates on the nervous and endocrine systems. A soccer match offers an opportunity to investigate how neurons work and how a simple reflex arc functions. Footage of infants illustrates the processes of neural network growth and coordination acquisition. A Penfield map opens the door to a study of the senses, with an emphasis on vision. The links between chemical activity in the brain and behavior are examined. And an analysis of...
Description
An introduction to human biology-the subject of that most fascinating human study, ourselves. The program shows a wide range of human activities, and how the body enables us to live in diverse climates and perform diverse activities. Extraordinary close-up filming over the body's exterior and in its interior causes surface differences to fade away and enables viewers to see the immensely complex and interactive systems that constitute the living body....
Description
The longevity revolution is under way! In this program, gerontologist Michael Rose introduces viewers to recent breakthroughs in life extension science-and approaches to staying alive until those technologies become readily available. Biological age measurement, caloric restriction, stem cell therapy, cryobiology, and artery-cruising nanobots are discussed, as well as experiments being conducted to increase the life span of mice via nutritional supplements,...
Description
Is there such a thing as a perfect recollection or photographic memory? This program examines that question and others related to the brain's ability to store knowledge. Using a wide range of examples, the program demonstrates that even the sharpest mental recording is subjective, selective, incomplete, even faulty. Students also learn how the performance of elite athletes may be tied to muscle memory, which facilitates previously learned actions...
Description
A tough outer layer can come in handy, but the strongest defense isn't always the thickest. This program explores all kinds of bodily protection, from animal hides and shells to artificial armor to human skin-showing how anatomy and technology have evolved to guard against potential dangers. Viewers meet sea and land creatures with sophisticated protective suits, including lobsters, snails, turtles, alligators, sharks, and abalone-which sport some...
Description
This program offers an overview of genetics and cloning as they occur both in nature and in the laboratory while addressing the ethical and social implications of genetic engineering. Genes, chromosomes, and DNA are identified, and the process of cell fertilization is demonstrated. Identical human twins are presented as an example of naturally occurring clones. The synthesis of human insulin using recombinant DNA technology, the production of alpha-1...
Description
As amazing as it is complex, the human body is a marvel of biological machinery! This collection of 52 video clips (30 seconds to 2 minutes 30 seconds each) combines high-quality film footage and detailed animations to take a close-up look at the body's building blocks, the architecture of the body, the nervous system, the five senses, blood circulation, respiration and nutrition, and reproduction. Video clips include: The Body's Building Blocks-Introduction;...
Description
What happens when a deadly crime takes place and law enforcement puts all of its scientific resources into action? Can forensic science really solve a murder? This program follows scientists through a dramatized investigation, from the discovery of the crime scene through various stages of evidence analysis to the presentation of findings in court. Instead of Hollywood hype, viewers are given a realistic portrayal of the forensic science process,...
Description
Genetic and neurological research has led to increasingly sophisticated medical capabilities-resulting in a growing number of moral and ethical quandaries. This cluster of NewsHour segments surveys recent milestones in biology-many of which have produced as much controversy as insight. Reporting on the newly-identified anti-aging gene SIR2 and the cross-species implantation of stem cells, the program also inquires into artificial limb technology,...
Formats
Description
By their very nature, sports competitions push the human body to its limits. In this program, we examine four bodily systems - skeletal, muscular, respiratory, and circulatory - to demonstrate how our anatomy enables us to be physically active. Extensive computer graphics and sports footage provide a comprehensive overview of the subject. - Container.
Description
This collection of 13 spectacular video clips offers insights into weight management, nutritional supplements, and more. Healthy and unhealthy eating, vitamins and vitamin deficiencies, food additives, and the actions of salt and water in the body are considered. Video clips include. Weight Control * Battling the Bulge: Overindulgence * Battling the Bulge: Glycemic Index * Battling the Bulge: Dieting * Battling the Bulge: Healthy Lifestyle Dietary...
Description
How do plants and animals stave off overheating and dehydration under a relentless sun-especially when burdened with thick skins, hides, or shells? This program looks at adaptations and survival techniques that cope with intense heat, particularly in desert environments. Venturing into the Sonora Desert, viewers learn about the sprawling root system of the saguaro cactus and the water recycling abilities of the desert tortoise. Moving into the human...
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