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To see the stereo effect, please gaze at infinity at a point between the two images. You should eventually see three images. The middle image will be a combination of the left and right images and it should look solid (stereo or 3d). The effect can sometimes be improved by holding a sheet of paper or card perpendicular to the image pair so that your left eye only sees the left image and your right eye only sees the right image. To focus, move your head closer to or further from the image. It might take a few tries to achieve the effect. NEPHRON from a Human Kidney (the kidneys are paired organs that are responsible for controlling fluid balance and for the excretion of nitrogenous and other wastes via urine). The nephron consists of a long and twisted tube which, at its proximal end, is blind and invaginated to create a double walled cup (Bowman's Capsule) which surrounds a clump of fine blood vessels (the glomerulus). From the glomerulus, passes the filtrate from the blood which enters the cavity of the tubule. First it passes through the proximal convoluted tubule (shown in blue) where a considerable amount of resorption occurs. Thence through the Loop of Henle (green), where further concentration occurs. The distal convoluted tubule (purple in top image, orange in lower image) sees active ion transport. Ultimately, the fluid in the tubule becomes urine and passes down the collecting duct to the urinary bladder. |