A 10-second Pixar-style 3D scientific animation showcasing a close-up view inside a human tissue tunnel. The background features swirling reddish-brown textures forming concentric circles. In the center of the frame, glowing blue collagen fiber bundles intertwine, their surfaces smooth and shiny, appearing as linear strands. The camera slowly zooms in, focusing on these interwoven collagen fibers, creating a sense of depth and immersion. No text, no watermark, rich in detail, 4K resolution, 60 frames per second, cinematic lighting effects, and vibrant colors.