Anatomy of a Kidney
There is a very brief video with still images of the kidney. This is a quote from the video:
"This cross section of a kidney, almost three times life-size, shows its blood supply and one of the filter tubules, a nephron, highly magnified. The nephron is a highly specialized coiled tubule measuring up to one inch in length. There are more than one million nephrons in each kidney. They function as the kidney's filter units. The kidneys filter unwanted materials from the blood and regulate th
'The 'kidneys are a bean shaped, fist size organ whose task is to filter blood and remove the waste.' This is a quote from the video. The information is related in a 'dry' way but the content is usable. The instructor appears to be using slideshow.
Learn How the Kidneys Work
How do our kidneys filter our blood stream? This video deomonstrates and explains how our kidneys work by making a model using a water bottle, fish tank tubing, funnel, coffee filters, food coloring and water. Run time 03:52.
Hepatitis C Infection - 3D Medical Animation
This brief video is computer animation concerning the Hepatitis C virus which primarily infects the liver and is blood-borne. the video also tells what the symptoms are and how the disease may last for years and get progressively worse. Suitable for high school students.
Polio pt 1
Content: Poliomyelitis is a viral infection of the intestinal tract. Most cases of polio were mild--headache, fever, sore throat, and depression--with the patient usually recovered within three or four days. In fewer and more serious cases, the virus penetrates the stomach and intestinal tract, enters the lymphatic system, then the bloodstream, and then attacks the motor nerve cells of the spinal cord; if the nerve damage is severe, paralysis will result. Occurring most frequently in children, p
Why Do Humans Have Adrenaline?
Adrenaline is a hormone and neurotransmitter that helps more
oxygenated blood move to the muscles. Discover why adrenaline is
identified with the "fight or flight response" with information from a
Next Generation of Cheap Solar Cells
See a new technology which uses cheap materials - instead of expensive silicon crystals - to create powerful solar cells. These new cells are projected to cost 1/10th of what the more expensive silicon cells cost. See how a tiny solar panel - can create enormus usable wattage - and thus useful power. Run time 02:05.
Formation of a Pulmonary Embolism
3-D animation of a blood clot forming in a lower leg vein, creating a deep vein thrombosis. When the thrombosis breaks free of the valve, it is called an embolus and travels toward the heart and lungs. The animation is set to music. Grades 7-12. 57 sec.
Video clip shows a microscopic blood vessel only one cell layer thick, so that individual blood cells must move through single file. Grades 5-12. 13 seconds.
Short video clip shows how a vein contains one-way valves that work in conjunction with skeleto-muscles. When the sceleto-mucles contract, the valve open and blood is forced toward the heart. When the sceleto-muscle relaxed, the valve closed to prevent the backflow of blood away from the heart. Grades 5-12. 19 sec.
Human Circulation: Blood Vessels
Professor George Wolfe discusses human circulation and blood vessels in this video from Thinkwell's online Biology series. The video uses lecture format along with notes and illustrations on a board. Run time 11:22.
This video segment from Design Squad features the work of Howard Pryor, a tissue engineer and doctor at Massachusetts General Hospital. Dr. Pryor demonstrates a device he is working on to replace diseased livers. He explains the challenges of artificially engineering a human organ, including getting blood to flow through a device for processing just as it would through a liver. He also details the design process that helps all engineers not only analyze a problem and develop a solution, but also
How the Body Works : Color Vision
This is brief video that uses a series of still images to tell the story of color as perceived by the human eye. 'Color vision is a synthesis of red, green, and blue light which is brought about by changes in pigments within the cone cells of the retina. The human eye can recognize hundreds of different colors, which are combinations of these three colors.'
The Fate of Absorbed Nutrients
You've eaten a hamburger and it's broken down into your blood and lymph node system. But where does it go now? Professor George Wolfe discusses the fate of absorbed nutrients in this video from Thinkwell's online Biology series. Run time 15:58.
This is an introduction to the Lymphatic System and its role within the Circulatory System. The lymphatic system restores vital fluid to the blood and plays a vital roll in disease resistance.
How the Body Works : The Lymphatic System
This video, through still images and narration, offers information concerning the lymphatic system, a network of vessels which carries lymph from around the tissues to the blood.
How Is Nuclear Energy Harmful?
Nuclear energy can be harmful when radioactivity is absorbed by
cells of the body. Discover how radioactivity can damage bone marrow and red blood cells with information from a science teacher in this video.
Weather : What Causes Wind-Driven Currents?
Wind-driven currents are caused by the return of large circulation cells, of which there are three between the equator and the poles. Find out how circulation cells also move heat over the planet with help from the chair of a department of environmental studies in this video (02:29) on wind-driven currents.
Expert: Jack Hall
Bio: Dr. Jack Hall is the department chair in the department of environmental studies at the University of North Carolina at Wilmington.
Sonnet 2: By William Shakespeare
Read by: Bertram Selwyn (Bernard Shakespeare) "When forty winters shall besiege thy brow, And dig deep trenches in thy beauty's field, Thy youth's proud livery, so gazed on now, Will be a tatter'd weed, of small worth held: Then being ask'd where all thy beauty lies, Where all the treasure of thy lusty days, To say, within thine own deep-sunken eyes, Were an all-eating shame and thriftless praise. How much more praise deserved thy beauty's use, If thou couldst answer 'This fair child of mine Sha
How the Body Works : Each Heartbeat
This is an excellent short video about the heart. A quote from this video: "With each heartbeat there are two phases in the passage of oxygenated blood and deoxygenated blood through the heart. In the phase of relaxation, or diastole, the heart fills with blood."