Trabecular bone, also known as cancellous bone, is a spongy type of bone found at the ends of long bones, within the interior of others, and in the vertebrae. It has a porous structure that resembles a honeycomb, which helps reduce weight while maintaining strength. This type of bone is crucial for supporting the body's weight and absorbing shock during physical activities. The primary function of trabecular bone is to provide structural support and flexibility. It contains red bone marrow, where blood cell production occurs, and is involved in the regulation of minerals like calcium and phosphorus. Its unique architecture allows for efficient nutrient exchange and contributes to overall bone health.