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There are 19 videos in this category and 0 videos in 0 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 14 - 18
1242 Views:
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The instructor continues with this discussion of the Secondary Active Transport in the Nephron. Mr. Khan uses computer software (with different colors for clarification and emphasis) to illustrate his points. Sal Khan is the recipient of the 2009 Mic...rosoft Tech Award in Education.
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March 3, 2010 at 10:11 PM
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Not Right For WatchKnowLearn
Ages: 15 - 18
1982 Views:
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This is an overview of how the nephrons in the kidney filter blood and re-absorb water and other molecules. Mr. Khan uses computer software (with different colors for clarification and emphasis) to illustrate his points. Sal Khan is the recipient of ...the 2009 Microsoft Tech Award in Education.
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March 3, 2010 at 10:08 PM
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Not Right For WatchKnowLearn
Ages: 9 - 13
637 Views:
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This very short video gives basic facts about our kidneys. Key vocabulary words include kidney, ureter, bladder, and urethra. A diagram is given to label different parts. This is a good resource to help build background knowledge and would work well ...as an introductory lesson to the human body and urinary system. (1:17)
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April 10, 2012 at 02:05 AM
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Not Right For WatchKnowLearn
Ages: 9 - 13
4547 Views:
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This short, humorous video explains the excretory system (also called the urinary system), including its major organs: the kidneys, ureters, urethra, and bladder.(01:20)
April 17, 2010 at 06:15 PM
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Not Right For WatchKnowLearn
Ages: 11 - 16
1728 Views:
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Segment from the program Digestion and Excretion: Absorption, Exretion, and Homeostasis.
December 4, 2009 at 10:59 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
1480 Views:
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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.
June 13, 2010 at 11:45 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
1366 Views:
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This is brief, computer-animated video of an overview of the kidneys and their function in the human body.
February 14, 2010 at 01:27 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
1163 Views:
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This is a brief (01:10) video using computer animation to demonstrate how urine forms.
May 29, 2010 at 06:35 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
1136 Views:
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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 nephro...n 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 the levels of water and chemicals in the body."
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March 3, 2010 at 10:16 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
1122 Views:
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The filtering mechanism occurs at the Bowman's capsule of each nephron. As blood flows through the glomerular tuft, small molecules are forced through pores in the capillary walls into the nephron. Red blood cells and large protein molecules remain. ...The filtrate flows down the tubule and is joined by organic wastes and excess salts secreted from surrounding kidney tissues. Most of the glucose, amino acids, vitamins and essential salts are reabsorbed into the blood, leaving a concentrated solution, urine.
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May 29, 2010 at 06:32 PM
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