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There are 14 videos in this category and 8 videos in 2 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 14 - 18
1877 Views:
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This 3D medical animation shows a macrophage ingesting bacteria. The macrophage then releases cytokines, chemicals that attract other leukocytes to the infected area. Plays music during the animation. Grades 9-12. 42 sec.
August 13, 2009 at 10:34 AM
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Not Right For WatchKnowLearn
Ages: 15 - 18
1528 Views:
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Hank tells us about the team of deadly ninja assassins that is tasked with protecting our bodies from all the bad guys that want to kill us - also known as our immune system. (15:02)
September 4, 2012 at 04:29 AM
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Not Right For WatchKnowLearn
Ages: 13 - 18
2297 Views:
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This 3D medical animation shows how antibodies stop harmful pathogens from attaching themselves to healthy cells. It begins by showing normal red and white blood cells flowing through the blood stream. Next, a single pathogen appears onscreen slowly ...moving toward the surface of a cell. Pathogens continue to attach to the white blood cell. During the immune system response, Y-shaped antibodies begin attacking the pathogen, binding to its surface. The antibodies completely block the pathogen from attaching to the blood cell. A macrophage then appears onscreen to engulf and digest the pathogen. Set to music. 53 sec.
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August 13, 2009 at 10:39 AM
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Not Right For WatchKnowLearn
Ages: 14 - 18
789 Views:
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This video looks at human neutrophils (which are mobile cells that will quickly migrate to sites of injury to help fight infection). They are attracted there by chemical signals released by other cells of the immune system or by invading microbes. Ru...n time 01:18.
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March 25, 2009 at 06:41 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
442 Views:
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This is a overview of the inflammatory response. This video explains what happens when someone gets cut. The cells start sending chemicals that tell your body that something is going wrong. Later, the histamine comes by and causes symptoms like swell...ing or dilation of the capillaries. (14:35)
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July 7, 2011 at 02:51 PM
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Not Right For WatchKnowLearn
Ages: 8 - 12
2680 Views:
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The many parts of your immune system work together to defend your body against diseases. White blood cells in your blood vessels and lymph vessels help protect your body by killing intruders and getting rid of harmful materials.
May 17, 2011 at 08:12 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
4740 Views:
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This is a clip from the program The Immunological System: Recognition, Attack, and Memory. This segment shows how the immune system works. (03:16)
March 3, 2010 at 10:36 PM
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Not Right For WatchKnowLearn
Ages: 9 - 18
1181 Views:
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A quote from the video: "The immune mechanism is designed to protect the body against attack from invading microorganisms and foreign, potentially harmful molecules. There are four types of immune mechanisms. The nature of the invading antigen determ...ines which type of mechanism is brought into action." Suitable for older elementary students and up. (02:45)
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November 15, 2009 at 04:25 PM
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Not Right For WatchKnowLearn
Ages: 8 - 15
1204 Views:
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Compares the body to a house or fort in need of military protection. Describes the immune system as soldiers protecting the fort. Shows process and steps and process the body/immune system goes through to protect from the cold virus. Shows the commun...ication between the body and cells to combat illness and may destroy some cells that carry an illness. References how cells can remember a virus to combat it if the body comes into contact with it again.
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November 28, 2010 at 01:47 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
819 Views:
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This video consists of a still image with red arrows pointing to the various parts of the body as the narrator discusses it.
February 14, 2010 at 01:11 PM
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