https://tube.blueben.net/videos/watch/ea433b6c-d4f3-46c2-8c6e-4ac3d4c151ad Inside the Fingernail Beneath every fingernail lies a microscopic living system. Layers of hard keratin protect delicate tissues, while blood vessels, nerves, and growing cells work together beneath the surface. From the nail matrix to the fingertip bone, every structure supports growth, sensation, protection, and precision in one extraordinary biological design. Sat, 30 May 2026 06:13:57 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.blueben.net https://tube.blueben.net/client/assets/images/icons/icon-96x96.png https://tube.blueben.net/videos/watch/ea433b6c-d4f3-46c2-8c6e-4ac3d4c151ad All rights reserved, unless otherwise specified in the terms specified at https://tube.blueben.net/about and potential licenses granted by each content's rightholder.