The human iris contains individual muscle fibers that contract and expand to control the size of the pupil, regulating the amount of light entering the eye.
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The Extreme Macro View of the Human Eye đď¸ #shortsAĂąadido:
At first glance, >> [music] >> you might think you're looking at alien tentacles, weird sea creatures, or some creepy cave formation. But as we pull back, the structure starts to form a perfect circle. This is actually an extreme macro view of a human iris.
Those ridges are the individual muscle fibers that contract and expand your pupil to let light in. Mind-blowing, right? Subscribe [music] for more crazy views.
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