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Theres no such thing as a safe tan. Regardless of the source, UV rays pose a health risk. Learn more at http://www.fda.gov/ForConsumers/ConsumerUpdates/ucm186687.htm [vpradiationemittingproducts]
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Platelet Plug Formation is an important part of hemostasis. Watch the video and see how platelets become "sticky" to one another and form a plug to stop blood flow.
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Find out how the pacemaker cells use the movement of sodium, calcium, and potassium to get your heart beating! Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by…
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See how muscle cells in the heart contract by allowing Calcium to flow inside and bringing along some positive charge with it! Rishi is a pediatric infectious disease physician and works at Khan…
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Describes the forces that allow for capillary exchange, including hydrostatic and oncotic forces.
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©2015 Davor Pavlovic, University of Birmingham
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This video explains emulsification.
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What gets reabsorbed in the proximal convoluted tubule, the decending limb of the loop of Henle, the ascending limb of the loop of henle, and the distal convoluted tubule. The vasa recta is also…
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Same mechanism as previous video, except in more depth because it focuses in on the kidney. Explains differences in cortical nephron vs juxtamedullary nephron.
Q: How does this mechanism work?
Q:…
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This video discusses ADH and aquaporins.
Q: What is ADH, and what does it do?
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This video covers parietal cells, and how it interacts with the bicarbonate buffer system in our bodies.
Questions: What are the cells of digestion?
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what is the difference between aerobic and anaerobic processes?
ketoacidosis, anerobic and anaerobic
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This video covers how the enteric nervous system works with the ECL cells, cheif cells, G-cells, and D-cells. The video is a continuation of "Stomach Cells In Upper Digestion Part 1".…
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This video is a continuation on the discussion of the stomach cells, but covers what gastrin does, and what somatostatin does. It also explains what would happen if somatostatin wasn't present…
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What the micturition reflex is, how we learn to control our bladder.
Q: What is the mictuirtion reflex?
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Continuation of the previous video. Finishes this two part video by explaining the concentration gradients in the ascending loop of Henle, introduces osmolarity, and explains what urea is and where…
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This video explains how the Acid Base Buffering System works.
Q: How would you describe the Acid Base Buffering System?
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A video explaining Alkalosis and Acidosis, and the Acid Base Buffering System's response to each.
Q: What is alkalosis and acidosis?
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Draws out/labels a nephron/parts of the nephron. Explains symport in the proximal convoluted tubule in more detail than other previous videos. Explains that glucose in the urine is a sign of diabetes…
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How histamine works in the stomach to stimulate cells. Cheif cells and parietal cell functions/secretions.
Q: What are the affects of histamine on the stomach?
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This video teaches how we get more stomach acid, and then how that acid becomes neutralized in the duodenum.
Question: How do we get stomach acid?
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The bicarbonate buffer system, and how it gets us from being more acidic to more alkaline. Bicarbonate goes into pancreatic duct, and hydrogen goes into the blood.
Q: How is bicarbonate made in the…
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Hepatic portal system, and how it functions
Questions: How does the hepatic portal system work?
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This video is about cells and hormones in the digestive system.
What is the difference between exocrine and endocrine?
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Bile functions, emulsification, chylomicron formation, the route chylomicrons take to become VLDL.
Q: How do we make chylomicrons?
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Digestive cells and enzymes. Digestive tract (very quickly). Scenarios where an individual would be in acidosis and alkalosis (respiratory and metabolic)
Q: What is happening with pH?
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A description of chylomicrons and the role of LDL and HDL in the body.
Q: What are chylomicrons?
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This video explains how glomerular pressure, pressure in the bowman's capsule, and blood colloid osmotic pressure all effect Glomerular Filtration Rate.
Q: How is filtration regulated in the…
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Enzymes from the pancrease. S-Cells, I-Cells, K-Cells (their functions and what they secrete).
Q: How do we digest and absorb fats?
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Changes of hormone levels during the menstrual cycle. Phases of the cycle. How periods happen. Signs of pregnancy. How birth control works.
Questions: What happens during the menstrual cycle? What…
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